31143014412 has 12 divisors (see below), whose sum is σ = 72667033656. Its totient is φ = 10381004800.

The previous prime is 31143014411. The next prime is 31143014447. The reversal of 31143014412 is 21441034113.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (31143014411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1297625589 + ... + 1297625612.

It is an arithmetic number, because the mean of its divisors is an integer number (6055586138).

Almost surely, 2^31143014412 is an apocalyptic number.

It is an amenable number.

31143014412 is an abundant number, since it is smaller than the sum of its proper divisors (41524019244).

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

31143014412 is a wasteful number, since it uses less digits than its factorization.

31143014412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595251208 (or 2595251206 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 31143014412 its reverse (21441034113), we get a palindrome (52584048525).

The spelling of 31143014412 in words is "thirty-one billion, one hundred forty-three million, fourteen thousand, four hundred twelve".