31532323012 has 48 divisors (see below), whose sum is σ = 58322656000. Its totient is φ = 14875635744.

The previous prime is 31532322989. The next prime is 31532323019. The reversal of 31532323012 is 21032323513.

It is not an unprimeable number, because it can be changed into a prime (31532323019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34765063 + ... + 34765969.

Almost surely, 2^31532323012 is an apocalyptic number.

It is an amenable number.

31532323012 is a deficient number, since it is larger than the sum of its proper divisors (26790332988).

31532323012 is a wasteful number, since it uses less digits than its factorization.

31532323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288 (or 2286 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 31532323012 its reverse (21032323513), we get a palindrome (52564646525).

The spelling of 31532323012 in words is "thirty-one billion, five hundred thirty-two million, three hundred twenty-three thousand, twelve".