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31110113122 = 21123101608737
BaseRepresentation
bin11100111110010011…
…101010011101100010
32222022010011111021221
4130332103222131202
51002203142104442
622143005405254
72150636412154
oct347623523542
988263144257
1031110113122
11122149364a0
12604286982a
132c1a376c7a
141711a5aad4
15c2130b467
hex73e4ea762

31110113122 has 32 divisors (see below), whose sum is σ = 53646862464. Its totient is φ = 13392192000.

The previous prime is 31110113113. The next prime is 31110113141. The reversal of 31110113122 is 22131101113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31110113096 and 31110113105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253263 + ... + 355474.

It is an arithmetic number, because the mean of its divisors is an integer number (1676464452).

Almost surely, 231110113122 is an apocalyptic number.

31110113122 is a deficient number, since it is larger than the sum of its proper divisors (22536749342).

31110113122 is a wasteful number, since it uses less digits than its factorization.

31110113122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608874.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 31110113122 its reverse (22131101113), we get a palindrome (53241214235).

The spelling of 31110113122 in words is "thirty-one billion, one hundred ten million, one hundred thirteen thousand, one hundred twenty-two".

Divisors: 1 2 11 22 23 46 101 202 253 506 1111 2222 2323 4646 25553 51106 608737 1217474 6696107 13392214 14000951 28001902 61482437 122964874 154010461 308020922 676306807 1352613614 1414096051 2828192102 15555056561 31110113122