31230411644 has 12 divisors (see below), whose sum is σ = 57529705800. Its totient is φ = 14793352848.

The previous prime is 31230411601. The next prime is 31230411677. The reversal of 31230411644 is 44611403213.

It is a happy number.

It is a super-2 number, since 2×31230411644² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 205463159 + ... + 205463310.

It is an arithmetic number, because the mean of its divisors is an integer number (4794142150).

Almost surely, 2^31230411644 is an apocalyptic number.

It is an amenable number.

31230411644 is a deficient number, since it is larger than the sum of its proper divisors (26299294156).

31230411644 is a wasteful number, since it uses less digits than its factorization.

31230411644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410926492 (or 410926490 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 31230411644 its reverse (44611403213), we get a palindrome (75841814857).

The spelling of 31230411644 in words is "thirty-one billion, two hundred thirty million, four hundred eleven thousand, six hundred forty-four".