123133013111220 has 48 divisors (see below), whose sum is σ = 394025641957248. Its totient is φ = 28144688711040.

The previous prime is 123133013111203. The next prime is 123133013111231. The reversal of 123133013111220 is 22111310331321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146586919951 + ... + 146586920790.

It is an arithmetic number, because the mean of its divisors is an integer number (8208867540776).

Almost surely, 2^{123133013111220} is an apocalyptic number.

123133013111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123133013111220 is an abundant number, since it is smaller than the sum of its proper divisors (270892628846028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123133013111220 is a wasteful number, since it uses less digits than its factorization.

123133013111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293173840760 (or 293173840758 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 123133013111220 its reverse (22111310331321), we get a palindrome (145244323442541).

The spelling of 123133013111220 in words is "one hundred twenty-three trillion, one hundred thirty-three billion, thirteen million, one hundred eleven thousand, two hundred twenty".