123123213200001 has 32 divisors (see below), whose sum is σ = 188464906764288. Its totient is φ = 70037927910720.

The previous prime is 123123213199999. The next prime is 123123213200011. The reversal of 123123213200001 is 100002312321321.

It is not a de Polignac number, because 123123213200001 - 2¹ = 123123213199999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (123123213200011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124482631 + ... + 125467811.

It is an arithmetic number, because the mean of its divisors is an integer number (5889528336384).

Almost surely, 2^{123123213200001} is an apocalyptic number.

It is an amenable number.

123123213200001 is a deficient number, since it is larger than the sum of its proper divisors (65341693564287).

123123213200001 is a wasteful number, since it uses less digits than its factorization.

123123213200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012101.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123123213200001 its reverse (100002312321321), we get a palindrome (223125525521322).

The spelling of 123123213200001 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, two hundred thirteen million, two hundred thousand, one".