123431363134321 has 6 divisors (see below), whose sum is σ = 135672490056866. Its totient is φ = 112210330122000.

The previous prime is 123431363134301. The next prime is 123431363134357.

123431363134321 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 123230780076096 + 200583058225 = 11100936^2 + 447865^2 .

It is not a de Polignac number, because 123431363134321 - 2⁹ = 123431363133809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123431363134301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510046954980 + ... + 510046955221.

Almost surely, 2^{123431363134321} is an apocalyptic number.

123431363134321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123431363134321 is a deficient number, since it is larger than the sum of its proper divisors (12241126922545).

123431363134321 is a wasteful number, since it uses less digits than its factorization.

123431363134321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020093910223 (or 1020093910212 counting only the distinct ones).

The product of its digits is 279936, while the sum is 40.

The spelling of 123431363134321 in words is "one hundred twenty-three trillion, four hundred thirty-one billion, three hundred sixty-three million, one hundred thirty-four thousand, three hundred twenty-one".