123031243051001 has 4 divisors (see below), whose sum is σ = 123031360280400. Its totient is φ = 123031125821604.

The previous prime is 123031243050983. The next prime is 123031243051037. The reversal of 123031243051001 is 100150342130321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123031243051001 - 2²² = 123031238856697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123031243551001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57026111 + ... + 59144228.

It is an arithmetic number, because the mean of its divisors is an integer number (30757840070100).

Almost surely, 2^{123031243051001} is an apocalyptic number.

It is an amenable number.

123031243051001 is a deficient number, since it is larger than the sum of its proper divisors (117229399).

123031243051001 is a wasteful number, since it uses less digits than its factorization.

123031243051001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117229398.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 123031243051001 its reverse (100150342130321), we get a palindrome (223181585181322).

The spelling of 123031243051001 in words is "one hundred twenty-three trillion, thirty-one billion, two hundred forty-three million, fifty-one thousand, one".