123031021210102 has 16 divisors (see below), whose sum is σ = 184948120418112. Its totient is φ = 61381652048640.

The previous prime is 123031021210093. The next prime is 123031021210193. The reversal of 123031021210102 is 201012120130321.

It is a self number, because there is not a number n which added to its sum of digits gives 123031021210102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57774628 + ... + 59866264.

It is an arithmetic number, because the mean of its divisors is an integer number (11559257526132).

Almost surely, 2^{123031021210102} is an apocalyptic number.

123031021210102 is a deficient number, since it is larger than the sum of its proper divisors (61917099208010).

123031021210102 is a wasteful number, since it uses less digits than its factorization.

123031021210102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155623.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 123031021210102 its reverse (201012120130321), we get a palindrome (324043141340423).

The spelling of 123031021210102 in words is "one hundred twenty-three trillion, thirty-one billion, twenty-one million, two hundred ten thousand, one hundred two".