431121011311320 has 64 divisors (see below), whose sum is σ = 1410941491568640. Its totient is φ = 104514184560000.

The previous prime is 431121011311313. The next prime is 431121011311349. The reversal of 431121011311320 is 23113110121134.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 163303412056 + ... + 163303414695.

It is an arithmetic number, because the mean of its divisors is an integer number (22045960805760).

Almost surely, 2^{431121011311320} is an apocalyptic number.

431121011311320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431121011311320 is an abundant number, since it is smaller than the sum of its proper divisors (979820480257320).

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

431121011311320 is a wasteful number, since it uses less digits than its factorization.

431121011311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326606826776 (or 326606826772 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 431121011311320 its reverse (23113110121134), we get a palindrome (454234121432454).

The spelling of 431121011311320 in words is "four hundred thirty-one trillion, one hundred twenty-one billion, eleven million, three hundred eleven thousand, three hundred twenty".