431311321112 has 32 divisors (see below), whose sum is σ = 972882681600. Its totient is φ = 175118881824.

The previous prime is 431311321057. The next prime is 431311321139. The reversal of 431311321112 is 211123113134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202682828 + ... + 202684955.

It is an arithmetic number, because the mean of its divisors is an integer number (30402583800).

Almost surely, 2^431311321112 is an apocalyptic number.

It is an amenable number.

431311321112 is an abundant number, since it is smaller than the sum of its proper divisors (541571360488).

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

431311321112 is a wasteful number, since it uses less digits than its factorization.

431311321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405367815 (or 405367811 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

Adding to 431311321112 its reverse (211123113134), we get a palindrome (642434434246).

The spelling of 431311321112 in words is "four hundred thirty-one billion, three hundred eleven million, three hundred twenty-one thousand, one hundred twelve".