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1030131213020 = 225721380858023
BaseRepresentation
bin11101111110110001001…
…10101110001011011100
310122110221121121122021122
432333120212232023130
5113334202042304040
62105122530550112
7134265416560100
oct16773046561334
93573847548248
101030131213020
1136797023a238
12147790a38338
13761aa8b2580
1437c04089900
151bbe1b5d1b5
hexefd89ae2dc

1030131213020 has 72 divisors (see below), whose sum is σ = 2710037532384. Its totient is φ = 326019544704.

The previous prime is 1030131212989. The next prime is 1030131213029. The reversal of 1030131213020 is 203121310301.

It is a super-2 number, since 2×10301312130202 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1030131213020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030131213029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40416272 + ... + 40441751.

It is an arithmetic number, because the mean of its divisors is an integer number (37639410172).

Almost surely, 21030131213020 is an apocalyptic number.

1030131213020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030131213020 is an abundant number, since it is smaller than the sum of its proper divisors (1679906319364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1030131213020 is a wasteful number, since it uses less digits than its factorization.

1030131213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80858059 (or 80858050 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1030131213020 its reverse (203121310301), we get a palindrome (1233252523321).

The spelling of 1030131213020 in words is "one trillion, thirty billion, one hundred thirty-one million, two hundred thirteen thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 49 52 65 70 91 98 130 140 182 196 245 260 364 455 490 637 910 980 1274 1820 2548 3185 6370 12740 80858023 161716046 323432092 404290115 566006161 808580230 1051154299 1132012322 1617160460 2102308598 2264024644 2830030805 3962043127 4204617196 5255771495 5660061610 7358080093 7924086254 10511542990 11320123220 14716160186 15848172508 19810215635 21023085980 29432320372 36790400465 39620431270 51506560651 73580800930 79240862540 103013121302 147161601860 206026242604 257532803255 515065606510 1030131213020