31300232312 has 32 divisors (see below), whose sum is σ = 65410707600. Its totient is φ = 13954281984.

The previous prime is 31300232291. The next prime is 31300232317. The reversal of 31300232312 is 21323200313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300232317) 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 7 ways as a sum of consecutive naturals, for example, 6053963 + ... + 6059130.

Almost surely, 2^31300232312 is an apocalyptic number.

It is an amenable number.

31300232312 is an abundant number, since it is smaller than the sum of its proper divisors (34110475288).

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

31300232312 is a wasteful number, since it uses less digits than its factorization.

31300232312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12113135 (or 12113131 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31300232312 its reverse (21323200313), we get a palindrome (52623432625).

The spelling of 31300232312 in words is "thirty-one billion, three hundred million, two hundred thirty-two thousand, three hundred twelve".