123255324031432 has 16 divisors (see below), whose sum is σ = 231121464952140. Its totient is φ = 61622933377536.

The previous prime is 123255324031397. The next prime is 123255324031447. The reversal of 123255324031432 is 234130423552321.

It can be written as a sum of positive squares in 2 ways, for example, as 108184670206596 + 15070653824836 = 10401186^2 + 3882094^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590968993 + ... + 591177520.

Almost surely, 2^{123255324031432} is an apocalyptic number.

It is an amenable number.

123255324031432 is a deficient number, since it is larger than the sum of its proper divisors (107866140920708).

123255324031432 is a wasteful number, since it uses less digits than its factorization.

123255324031432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182159552 (or 1182159548 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 123255324031432 its reverse (234130423552321), we get a palindrome (357385747583753).

The spelling of 123255324031432 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, three hundred twenty-four million, thirty-one thousand, four hundred thirty-two".