31212412043 has 8 divisors (see below), whose sum is σ = 31393615680. Its totient is φ = 31031284680.

The previous prime is 31212412037. The next prime is 31212412061. The reversal of 31212412043 is 34021421213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31212412043 - 2⁸ = 31212411787 is a prime.

It is a super-2 number, since 2×31212412043² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31212412073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 940808 + ... + 973418.

It is an arithmetic number, because the mean of its divisors is an integer number (3924201960).

Almost surely, 2^31212412043 is an apocalyptic number.

31212412043 is a deficient number, since it is larger than the sum of its proper divisors (181203637).

31212412043 is a wasteful number, since it uses less digits than its factorization.

31212412043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38137.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31212412043 its reverse (34021421213), we get a palindrome (65233833256).

The spelling of 31212412043 in words is "thirty-one billion, two hundred twelve million, four hundred twelve thousand, forty-three".