123031213101202 has 24 divisors (see below), whose sum is σ = 214820701868556. Its totient is φ = 52692346109088.

The previous prime is 123031213101193. The next prime is 123031213101221. The reversal of 123031213101202 is 202101312130321.

It can be written as a sum of positive squares in 2 ways, for example, as 122913165197641 + 118047903561 = 11086621^2 + 343581^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420289233 + ... + 420581860.

Almost surely, 2^{123031213101202} is an apocalyptic number.

123031213101202 is a deficient number, since it is larger than the sum of its proper divisors (91789488767354).

123031213101202 is a wasteful number, since it uses less digits than its factorization.

123031213101202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840872602 (or 840872595 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 123031213101202 its reverse (202101312130321), we get a palindrome (325132525231523).

The spelling of 123031213101202 in words is "one hundred twenty-three trillion, thirty-one billion, two hundred thirteen million, one hundred one thousand, two hundred two".