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1030120232020 = 2251141521112771
BaseRepresentation
bin11101111110101111111…
…00110101010001010100
310122110220211221202011221
432333113330311101110
5113334141234411040
62105121455340124
7134265224333365
oct16772774652124
93573824852157
101030120232020
1136796501a030
12147789221644
13761a8539339
1437c0282bb6c
151bbe0bde74a
hexefd7f35454

1030120232020 has 48 divisors (see below), whose sum is σ = 2359989567936. Its totient is φ = 374576832000.

The previous prime is 1030120231999. The next prime is 1030120232027. The reversal of 1030120232020 is 202320210301.

It is a super-2 number, since 2×10301202320202 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1030120231985 and 1030120232003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030120232027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9078235 + ... + 9191005.

It is an arithmetic number, because the mean of its divisors is an integer number (49166449332).

Almost surely, 21030120232020 is an apocalyptic number.

1030120232020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030120232020 is an abundant number, since it is smaller than the sum of its proper divisors (1329869335916).

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

1030120232020 is a wasteful number, since it uses less digits than its factorization.

1030120232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154312 (or 154310 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1030120232020 its reverse (202320210301), we get a palindrome (1232440442321).

The spelling of 1030120232020 in words is "one trillion, thirty billion, one hundred twenty million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 41521 83042 112771 166084 207605 225542 415210 451084 456731 563855 830420 913462 1127710 1240481 1826924 2255420 2283655 2480962 4567310 4961924 6202405 9134620 12404810 24809620 4682364691 9364729382 18729458764 23411823455 46823646910 51506011601 93647293820 103012023202 206024046404 257530058005 515060116010 1030120232020