123323121042400 has 36 divisors (see below), whose sum is σ = 301062569246712. Its totient is φ = 49329248416640.

The previous prime is 123323121042301. The next prime is 123323121042403. The reversal of 123323121042400 is 4240121323321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123323121042403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77076949852 + ... + 77076951451.

It is an arithmetic number, because the mean of its divisors is an integer number (8362849145742).

Almost surely, 2^{123323121042400} is an apocalyptic number.

123323121042400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123323121042400 is an abundant number, since it is smaller than the sum of its proper divisors (177739448204312).

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

123323121042400 is a wasteful number, since it uses less digits than its factorization.

123323121042400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154153901323 (or 154153901310 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 123323121042400 its reverse (4240121323321), we get a palindrome (127563242365721).

The spelling of 123323121042400 in words is "one hundred twenty-three trillion, three hundred twenty-three billion, one hundred twenty-one million, forty-two thousand, four hundred".