123031134230432 has 12 divisors (see below), whose sum is σ = 242217545516226. Its totient is φ = 61515567115200.

The previous prime is 123031134230387. The next prime is 123031134230467. The reversal of 123031134230432 is 234032431130321.

It can be written as a sum of positive squares in only one way, i.e., 115372432216336 + 7658702014096 = 10741156^2 + 2767436^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 3844722944701 = 123031134230432 / (1 + 2 + 3 + 0 + 3 + 1 + 1 + 3 + 4 + 2 + 3 + 0 + 4 + 3 + 2).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922361472319 + ... + 1922361472382.

Almost surely, 2^{123031134230432} is an apocalyptic number.

It is an amenable number.

123031134230432 is a deficient number, since it is larger than the sum of its proper divisors (119186411285794).

123031134230432 is an equidigital number, since it uses as much as digits as its factorization.

123031134230432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844722944711 (or 3844722944703 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 123031134230432 its reverse (234032431130321), we get a palindrome (357063565360753).

The spelling of 123031134230432 in words is "one hundred twenty-three trillion, thirty-one billion, one hundred thirty-four million, two hundred thirty thousand, four hundred thirty-two".