31002444420013 has 4 divisors (see below), whose sum is σ = 33820848458208. Its totient is φ = 28184040381820.

The previous prime is 31002444420011. The next prime is 31002444420041.

31002444420013 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31002444420013 - 2¹ = 31002444420011 is a prime.

It is a super-2 number, since 2×31002444420013² (a number of 28 digits) contains 22 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 (31002444420011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1409202019081 + ... + 1409202019102.

It is an arithmetic number, because the mean of its divisors is an integer number (8455212114552).

Almost surely, 2^{31002444420013} is an apocalyptic number.

It is an amenable number.

31002444420013 is a deficient number, since it is larger than the sum of its proper divisors (2818404038195).

31002444420013 is a wasteful number, since it uses less digits than its factorization.

31002444420013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818404038194.

The product of its (nonzero) digits is 9216, while the sum is 28.

It can be divided in two parts, 3100244 and 4420013, that added together give a palindrome (7520257).

The spelling of 31002444420013 in words is "thirty-one trillion, two billion, four hundred forty-four million, four hundred twenty thousand, thirteen".