102123311031 has 32 divisors (see below), whose sum is σ = 173596147200. Its totient is φ = 58123656000.

The previous prime is 102123311029. The next prime is 102123311053. The reversal of 102123311031 is 130113321201.

It is not a de Polignac number, because 102123311031 - 2¹ = 102123311029 is a prime.

It is a super-2 number, since 2×102123311031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102123310995 and 102123311013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102123311531) 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, 1028926 + ... + 1123803.

It is an arithmetic number, because the mean of its divisors is an integer number (5424879600).

Almost surely, 2^102123311031 is an apocalyptic number.

102123311031 is a deficient number, since it is larger than the sum of its proper divisors (71472836169).

102123311031 is a wasteful number, since it uses less digits than its factorization.

102123311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152996 (or 2152990 counting only the distinct ones).

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

Adding to 102123311031 its reverse (130113321201), we get a palindrome (232236632232).

The spelling of 102123311031 in words is "one hundred two billion, one hundred twenty-three million, three hundred eleven thousand, thirty-one".