431313140721 has 32 divisors (see below), whose sum is σ = 585894763008. Its totient is φ = 282171225600.

The previous prime is 431313140693. The next prime is 431313140777. The reversal of 431313140721 is 127041313134.

It is not a de Polignac number, because 431313140721 - 2²² = 431308946417 is a prime.

It is a super-2 number, since 2×431313140721² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431313140821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92733246 + ... + 92737896.

It is an arithmetic number, because the mean of its divisors is an integer number (18309211344).

Almost surely, 2^431313140721 is an apocalyptic number.

It is an amenable number.

431313140721 is a deficient number, since it is larger than the sum of its proper divisors (154581622287).

431313140721 is a wasteful number, since it uses less digits than its factorization.

431313140721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6381.

The product of its (nonzero) digits is 6048, while the sum is 30.

Adding to 431313140721 its reverse (127041313134), we get a palindrome (558354453855).

The spelling of 431313140721 in words is "four hundred thirty-one billion, three hundred thirteen million, one hundred forty thousand, seven hundred twenty-one".