31132212892 has 24 divisors (see below), whose sum is σ = 61351460352. Its totient is φ = 13694521200.

The previous prime is 31132212877. The next prime is 31132212901. The reversal of 31132212892 is 29821223113.

It is a super-2 number, since 2×31132212892² (a number of 22 digits) contains 22 as substring.

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, 11410738 + ... + 11413465.

It is an arithmetic number, because the mean of its divisors is an integer number (2556310848).

Almost surely, 2^31132212892 is an apocalyptic number.

It is an amenable number.

31132212892 is a deficient number, since it is larger than the sum of its proper divisors (30219247460).

31132212892 is a wasteful number, since it uses less digits than its factorization.

31132212892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22824249 (or 22824247 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

It can be divided in two parts, 3113221 and 2892, that added together give a palindrome (3116113).

The spelling of 31132212892 in words is "thirty-one billion, one hundred thirty-two million, two hundred twelve thousand, eight hundred ninety-two".