43131031412 has 24 divisors (see below), whose sum is σ = 86534200704. Its totient is φ = 18426412512.

The previous prime is 43131031327. The next prime is 43131031421. The reversal of 43131031412 is 21413013134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2420768 + ... + 2438519.

It is an arithmetic number, because the mean of its divisors is an integer number (3605591696).

Almost surely, 2^43131031412 is an apocalyptic number.

It is an amenable number.

43131031412 is an abundant number, since it is smaller than the sum of its proper divisors (43403169292).

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

43131031412 is a wasteful number, since it uses less digits than its factorization.

43131031412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4859615 (or 4859613 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 43131031412 its reverse (21413013134), we get a palindrome (64544044546).

The spelling of 43131031412 in words is "forty-three billion, one hundred thirty-one million, thirty-one thousand, four hundred twelve".