123031210232105 has 96 divisors (see below), whose sum is σ = 181434082788000. Its totient is φ = 79733582143488.

The previous prime is 123031210232069. The next prime is 123031210232197. The reversal of 123031210232105 is 501232012130321.

It can be written as a sum of positive squares in 16 ways, for example, as 52382158952704 + 70649051279401 = 7237552^2 + 8405299^2 .

It is not a de Polignac number, because 123031210232105 - 2¹² = 123031210228009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 162675371 + ... + 163429919.

It is an arithmetic number, because the mean of its divisors is an integer number (1889938362375).

Almost surely, 2^{123031210232105} is an apocalyptic number.

It is an amenable number.

123031210232105 is a deficient number, since it is larger than the sum of its proper divisors (58402872555895).

123031210232105 is a wasteful number, since it uses less digits than its factorization.

123031210232105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755083 (or 755076 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 123031210232105 its reverse (501232012130321), we get a palindrome (624263222362426).

The spelling of 123031210232105 in words is "one hundred twenty-three trillion, thirty-one billion, two hundred ten million, two hundred thirty-two thousand, one hundred five".