123031205523320 has 64 divisors (see below), whose sum is σ = 294305984781120. Its totient is φ = 46184642842624.

The previous prime is 123031205523301. The next prime is 123031205523323. The reversal of 123031205523320 is 23325502130321.

It is a super-3 number, since 3×123031205523320³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123031205523323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1261550969 + ... + 1261648488.

It is an arithmetic number, because the mean of its divisors is an integer number (4598531012205).

Almost surely, 2^{123031205523320} is an apocalyptic number.

123031205523320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123031205523320 is an abundant number, since it is smaller than the sum of its proper divisors (171274779257800).

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

123031205523320 is a wasteful number, since it uses less digits than its factorization.

123031205523320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523199544 (or 2523199540 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 123031205523320 its reverse (23325502130321), we get a palindrome (146356707653641).

The spelling of 123031205523320 in words is "one hundred twenty-three trillion, thirty-one billion, two hundred five million, five hundred twenty-three thousand, three hundred twenty".