31043634013 has 32 divisors (see below), whose sum is σ = 36669081600. Its totient is φ = 25734240000.

The previous prime is 31043633969. The next prime is 31043634043.

31043634013 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31043634013 - 2⁹ = 31043633501 is a prime.

It is a super-3 number, since 3×31043634013³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31043634043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6423508 + ... + 6428338.

It is an arithmetic number, because the mean of its divisors is an integer number (1145908800).

Almost surely, 2^31043634013 is an apocalyptic number.

It is an amenable number.

31043634013 is a deficient number, since it is larger than the sum of its proper divisors (5625447587).

31043634013 is a wasteful number, since it uses less digits than its factorization.

31043634013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5149.

The product of its (nonzero) digits is 7776, while the sum is 28.

The spelling of 31043634013 in words is "thirty-one billion, forty-three million, six hundred thirty-four thousand, thirteen".