123142020123231 has 12 divisors (see below), whose sum is σ = 188334854306352. Its totient is φ = 77265581253696.

The previous prime is 123142020123209. The next prime is 123142020123251. The reversal of 123142020123231 is 132321020241321.

123142020123231 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 420 + 2 + 0 + 1 + 2 + 3 + 231 = 666.

It is not a de Polignac number, because 123142020123231 - 2³⁰ = 123140946381407 is a prime.

It is a super-2 number, since 2×123142020123231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123142020123195 and 123142020123204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123142020123251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402424902211 + ... + 402424902516.

It is an arithmetic number, because the mean of its divisors is an integer number (15694571192196).

Almost surely, 2^{123142020123231} is an apocalyptic number.

123142020123231 is a deficient number, since it is larger than the sum of its proper divisors (65192834183121).

123142020123231 is a wasteful number, since it uses less digits than its factorization.

123142020123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804849804750 (or 804849804747 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 123142020123231 its reverse (132321020241321), we get a palindrome (255463040364552).

The spelling of 123142020123231 in words is "one hundred twenty-three trillion, one hundred forty-two billion, twenty million, one hundred twenty-three thousand, two hundred thirty-one".