122431111323320 has 64 divisors (see below), whose sum is σ = 276608369664000. Its totient is φ = 48770455877248.

The previous prime is 122431111323223. The next prime is 122431111323337. The reversal of 122431111323320 is 23323111134221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4032461 + ... + 16159299.

It is an arithmetic number, because the mean of its divisors is an integer number (4322005776000).

Almost surely, 2^{122431111323320} is an apocalyptic number.

122431111323320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122431111323320 is an abundant number, since it is smaller than the sum of its proper divisors (154177258340680).

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

122431111323320 is a wasteful number, since it uses less digits than its factorization.

122431111323320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12127892 (or 12127888 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 122431111323320 its reverse (23323111134221), we get a palindrome (145754222457541).

The spelling of 122431111323320 in words is "one hundred twenty-two trillion, four hundred thirty-one billion, one hundred eleven million, three hundred twenty-three thousand, three hundred twenty".