31423444413 has 16 divisors (see below), whose sum is σ = 42592262016. Its totient is φ = 20601915840.

The previous prime is 31423444391. The next prime is 31423444499. The reversal of 31423444413 is 31444432413.

It is not a de Polignac number, because 31423444413 - 2¹⁸ = 31423182269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31423446413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1380795 + ... + 1403367.

It is an arithmetic number, because the mean of its divisors is an integer number (2662016376).

Almost surely, 2^31423444413 is an apocalyptic number.

It is an amenable number.

31423444413 is a deficient number, since it is larger than the sum of its proper divisors (11168817603).

31423444413 is a wasteful number, since it uses less digits than its factorization.

31423444413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30244.

The product of its digits is 55296, while the sum is 33.

Adding to 31423444413 its reverse (31444432413), we get a palindrome (62867876826).

The spelling of 31423444413 in words is "thirty-one billion, four hundred twenty-three million, four hundred forty-four thousand, four hundred thirteen".