31313013332209 has 8 divisors (see below), whose sum is σ = 37020311328960. Its totient is φ = 25914217929936.

The previous prime is 31313013332147. The next prime is 31313013332299. The reversal of 31313013332209 is 90223331031313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31313013332209 - 2²⁷ = 31312879114481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31313013332299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77125648399 + ... + 77125648804.

It is an arithmetic number, because the mean of its divisors is an integer number (4627538916120).

Almost surely, 2^{31313013332209} is an apocalyptic number.

It is an amenable number.

31313013332209 is a deficient number, since it is larger than the sum of its proper divisors (5707297996751).

31313013332209 is a wasteful number, since it uses less digits than its factorization.

31313013332209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154251297239.

The product of its (nonzero) digits is 26244, while the sum is 34.

The spelling of 31313013332209 in words is "thirty-one trillion, three hundred thirteen billion, thirteen million, three hundred thirty-two thousand, two hundred nine".