31319065941 has 4 divisors (see below), whose sum is σ = 41758754592. Its totient is φ = 20879377292.

The previous prime is 31319065931. The next prime is 31319065979. The reversal of 31319065941 is 14956091313.

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 31319065941 - 2¹⁴ = 31319049557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31319065893 and 31319065902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31319065931) 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, 5219844321 + ... + 5219844326.

It is an arithmetic number, because the mean of its divisors is an integer number (10439688648).

Almost surely, 2^31319065941 is an apocalyptic number.

It is an amenable number.

31319065941 is a deficient number, since it is larger than the sum of its proper divisors (10439688651).

31319065941 is a wasteful number, since it uses less digits than its factorization.

31319065941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10439688650.

The product of its (nonzero) digits is 87480, while the sum is 42.

The spelling of 31319065941 in words is "thirty-one billion, three hundred nineteen million, sixty-five thousand, nine hundred forty-one".