31352203412 has 12 divisors (see below), whose sum is σ = 54922867776. Its totient is φ = 15659955480.

The previous prime is 31352203397. The next prime is 31352203451. The reversal of 31352203412 is 21430225313.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4032188 + ... + 4039955.

It is an arithmetic number, because the mean of its divisors is an integer number (4576905648).

Almost surely, 2^31352203412 is an apocalyptic number.

It is an amenable number.

31352203412 is a deficient number, since it is larger than the sum of its proper divisors (23570664364).

31352203412 is a wasteful number, since it uses less digits than its factorization.

31352203412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8073118 (or 8073116 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 31352203412 its reverse (21430225313), we get a palindrome (52782428725).

The spelling of 31352203412 in words is "thirty-one billion, three hundred fifty-two million, two hundred three thousand, four hundred twelve".