31212311332 has 12 divisors (see below), whose sum is σ = 57496363120. Its totient is φ = 14784779016.

The previous prime is 31212311327. The next prime is 31212311353. The reversal of 31212311332 is 23311321213.

It is a super-2 number, since 2×31212311332² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205344078 + ... + 205344229.

Almost surely, 2^31212311332 is an apocalyptic number.

It is an amenable number.

31212311332 is a deficient number, since it is larger than the sum of its proper divisors (26284051788).

31212311332 is a wasteful number, since it uses less digits than its factorization.

31212311332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410688330 (or 410688328 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 31212311332 its reverse (23311321213), we get a palindrome (54523632545).

The spelling of 31212311332 in words is "thirty-one billion, two hundred twelve million, three hundred eleven thousand, three hundred thirty-two".