123021033311220 has 96 divisors (see below), whose sum is σ = 377170265566080. Its totient is φ = 29712413544960.

The previous prime is 123021033311159. The next prime is 123021033311243. The reversal of 123021033311220 is 22113330120321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346282507 + ... + 346637586.

It is an arithmetic number, because the mean of its divisors is an integer number (3928856932980).

Almost surely, 2^{123021033311220} is an apocalyptic number.

123021033311220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123021033311220 is an abundant number, since it is smaller than the sum of its proper divisors (254149232254860).

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

123021033311220 is a wasteful number, since it uses less digits than its factorization.

123021033311220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692920385 (or 692920383 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 123021033311220 its reverse (22113330120321), we get a palindrome (145134363431541).

The spelling of 123021033311220 in words is "one hundred twenty-three trillion, twenty-one billion, thirty-three million, three hundred eleven thousand, two hundred twenty".