31303210311113 has 8 divisors (see below), whose sum is σ = 33714923467848. Its totient is φ = 28892036283264.

The previous prime is 31303210311091. The next prime is 31303210311193. The reversal of 31303210311113 is 31111301230313.

It can be written as a sum of positive squares in 4 ways, for example, as 304183134784 + 30999027176329 = 551528^2 + 5567677^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 31303210311113 - 2⁶ = 31303210311049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31303210311193) 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, 134661620 + ... + 134893877.

It is an arithmetic number, because the mean of its divisors is an integer number (4214365433481).

Almost surely, 2^{31303210311113} is an apocalyptic number.

It is an amenable number.

31303210311113 is a deficient number, since it is larger than the sum of its proper divisors (2411713156735).

31303210311113 is a wasteful number, since it uses less digits than its factorization.

31303210311113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269564443.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 31303210311113 its reverse (31111301230313), we get a palindrome (62414511541426).

The spelling of 31303210311113 in words is "thirty-one trillion, three hundred three billion, two hundred ten million, three hundred eleven thousand, one hundred thirteen".