123242442050531 has 16 divisors (see below), whose sum is σ = 132737053526400. Its totient is φ = 114072928466688.

The previous prime is 123242442050489. The next prime is 123242442050579. The reversal of 123242442050531 is 135050244242321.

It is not a de Polignac number, because 123242442050531 - 2¹⁴ = 123242442034147 is a prime.

It is a super-2 number, since 2×123242442050531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123242442059531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337055726 + ... + 337421171.

It is an arithmetic number, because the mean of its divisors is an integer number (8296065845400).

Almost surely, 2^{123242442050531} is an apocalyptic number.

123242442050531 is a deficient number, since it is larger than the sum of its proper divisors (9494611475869).

123242442050531 is a wasteful number, since it uses less digits than its factorization.

123242442050531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674477138.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 123242442050531 its reverse (135050244242321), we get a palindrome (258292686292852).

The spelling of 123242442050531 in words is "one hundred twenty-three trillion, two hundred forty-two billion, four hundred forty-two million, fifty thousand, five hundred thirty-one".