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3112103311031 = 1113157281493301
BaseRepresentation
bin101101010010010111110…
…011111111011010110111
3102000111212211102112010202
4231102113303333122313
5401442041421423111
610341402554311115
7440561551451501
oct55222763773267
912014784375122
103112103311031
11a9a921206570
1242319112849b
13197615a06a40
14aa8ab588d71
1555e46309b3b
hex2d497cff6b7

3112103311031 has 32 divisors (see below), whose sum is σ = 3692566737216. Its totient is φ = 2585681280000.

The previous prime is 3112103311021. The next prime is 3112103311039. The reversal of 3112103311031 is 1301133012113.

It is a de Polignac number, because none of the positive numbers 2k-3112103311031 is a prime.

It is a super-2 number, since 2×31121033110312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3112103310994 and 3112103311012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112103311039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6062081 + ... + 6555381.

It is an arithmetic number, because the mean of its divisors is an integer number (115392710538).

Almost surely, 23112103311031 is an apocalyptic number.

3112103311031 is a deficient number, since it is larger than the sum of its proper divisors (580463426185).

3112103311031 is a wasteful number, since it uses less digits than its factorization.

3112103311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493763.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 3112103311031 its reverse (1301133012113), we get a palindrome (4413236323144).

The spelling of 3112103311031 in words is "three trillion, one hundred twelve billion, one hundred three million, three hundred eleven thousand, thirty-one".

Divisors: 1 11 13 143 157 281 1727 2041 3091 3653 22451 40183 44117 485287 493301 573521 5426311 6308731 6412913 70542043 77448257 138617581 851930827 1006827341 1524793391 1802028553 11075100751 19822314083 21762960217 239392562387 282918482821 3112103311031