31021433412013 has 16 divisors (see below), whose sum is σ = 34137251733312. Its totient is φ = 27955892016000.

The previous prime is 31021433411987. The next prime is 31021433412023.

31021433412013 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 31021433412013 - 2¹⁷ = 31021433280941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31021433412023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24266323 + ... + 25512688.

It is an arithmetic number, because the mean of its divisors is an integer number (2133578233332).

Almost surely, 2^{31021433412013} is an apocalyptic number.

It is an amenable number.

31021433412013 is a deficient number, since it is larger than the sum of its proper divisors (3115818321299).

31021433412013 is a wasteful number, since it uses less digits than its factorization.

31021433412013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49779516.

The product of its (nonzero) digits is 5184, while the sum is 28.

It can be divided in two parts, 3102143 and 3412013, that added together give a palindrome (6514156).

The spelling of 31021433412013 in words is "thirty-one trillion, twenty-one billion, four hundred thirty-three million, four hundred twelve thousand, thirteen".