31431411232 has 48 divisors (see below), whose sum is σ = 66692324160. Its totient is φ = 14495553792.

The previous prime is 31431411217. The next prime is 31431411269. The reversal of 31431411232 is 23211413413.

It is a super-2 number, since 2×31431411232² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31431411197 and 31431411206.

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, 520063 + ... + 577345.

It is an arithmetic number, because the mean of its divisors is an integer number (1389423420).

Almost surely, 2^31431411232 is an apocalyptic number.

31431411232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31431411232 is an abundant number, since it is smaller than the sum of its proper divisors (35260912928).

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

31431411232 is a wasteful number, since it uses less digits than its factorization.

31431411232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58625 (or 58617 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

Adding to 31431411232 its reverse (23211413413), we get a palindrome (54642824645).

The spelling of 31431411232 in words is "thirty-one billion, four hundred thirty-one million, four hundred eleven thousand, two hundred thirty-two".