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1030103121231 = 331910319799851
BaseRepresentation
bin11101111110101101110…
…11100011110101001111
310122110212122202102121000
432333112323203311033
5113334122344334411
62105120044511343
7134264626026612
oct16772673436517
93573778672530
101030103121231
113679563a2488
1214778354b553
13761a4b28002
1437c00456179
151bbde45e956
hexefd6ee3d4f

1030103121231 has 64 divisors (see below), whose sum is σ = 1622979072000. Its totient is φ = 643884098400.

The previous prime is 1030103121209. The next prime is 1030103121241. The reversal of 1030103121231 is 1321213010301.

1030103121231 is a `hidden beast` number, since 10 + 301 + 0 + 3 + 121 + 231 = 666.

It is not a de Polignac number, because 1030103121231 - 211 = 1030103119183 is a prime.

It is a super-4 number, since 4×10301031212314 (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030103121241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104563456 + ... + 104573306.

It is an arithmetic number, because the mean of its divisors is an integer number (25359048000).

Almost surely, 21030103121231 is an apocalyptic number.

1030103121231 is a deficient number, since it is larger than the sum of its proper divisors (592875950769).

1030103121231 is a wasteful number, since it uses less digits than its factorization.

1030103121231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11961 (or 11955 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1030103121231 its reverse (1321213010301), we get a palindrome (2351316131532).

The spelling of 1030103121231 in words is "one trillion, thirty billion, one hundred three million, one hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 3 9 19 27 57 103 171 309 513 927 1957 1979 2781 5871 5937 9851 17613 17811 29553 37601 52839 53433 88659 112803 187169 203837 265977 338409 561507 611511 1014653 1015227 1684521 1834533 3043959 3872903 5053563 5503599 9131877 11618709 19278407 19495129 27395631 34856127 57835221 58485387 104568381 173505663 175456161 370407451 520516989 526368483 1111222353 2007998287 3333667059 6023994861 10001001177 18071984583 38151967453 54215953749 114455902359 343367707077 1030103121231