31631314417 has 4 divisors (see below), whose sum is σ = 31639715136. Its totient is φ = 31622913700.

The previous prime is 31631314321. The next prime is 31631314483. The reversal of 31631314417 is 71441313613.

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 31631314417 - 2¹¹ = 31631312369 is a prime.

It is a super-2 number, since 2×31631314417² (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 (31631344417) 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 3 ways as a sum of consecutive naturals, for example, 4194709 + ... + 4202242.

It is an arithmetic number, because the mean of its divisors is an integer number (7909928784).

Almost surely, 2^31631314417 is an apocalyptic number.

It is an amenable number.

31631314417 is a deficient number, since it is larger than the sum of its proper divisors (8400719).

31631314417 is an equidigital number, since it uses as much as digits as its factorization.

31631314417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8400718.

The product of its digits is 18144, while the sum is 34.

The spelling of 31631314417 in words is "thirty-one billion, six hundred thirty-one million, three hundred fourteen thousand, four hundred seventeen".