123013431120212 has 12 divisors (see below), whose sum is σ = 215286556992276. Its totient is φ = 61502986265280.

The previous prime is 123013431120193. The next prime is 123013431120271. The reversal of 123013431120212 is 212021134310321.

It can be written as a sum of positive squares in 2 ways, for example, as 12249678002116 + 110763753118096 = 3499954^2 + 10524436^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 932249489 + ... + 932381432.

It is an arithmetic number, because the mean of its divisors is an integer number (17940546416023).

Almost surely, 2^{123013431120212} is an apocalyptic number.

It is an amenable number.

123013431120212 is a deficient number, since it is larger than the sum of its proper divisors (92273125872064).

123013431120212 is a wasteful number, since it uses less digits than its factorization.

123013431120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864647418 (or 1864647416 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 123013431120212 its reverse (212021134310321), we get a palindrome (335034565430533).

The spelling of 123013431120212 in words is "one hundred twenty-three trillion, thirteen billion, four hundred thirty-one million, one hundred twenty thousand, two hundred twelve".