31314021230113 has 4 divisors (see below), whose sum is σ = 31315399692820. Its totient is φ = 31312642767408.

The previous prime is 31314021230087. The next prime is 31314021230117. The reversal of 31314021230113 is 31103212041313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10524132904464 + 20789888325649 = 3244092^2 + 4559593^2 .

It is a cyclic number.

It is not a de Polignac number, because 31314021230113 - 2³³ = 31305431295521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31314021230117) 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, 689197278 + ... + 689242711.

It is an arithmetic number, because the mean of its divisors is an integer number (7828849923205).

Almost surely, 2^{31314021230113} is an apocalyptic number.

It is an amenable number.

31314021230113 is a deficient number, since it is larger than the sum of its proper divisors (1378462707).

31314021230113 is a wasteful number, since it uses less digits than its factorization.

31314021230113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378462706.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31314021230113 its reverse (31103212041313), we get a palindrome (62417233271426).

The spelling of 31314021230113 in words is "thirty-one trillion, three hundred fourteen billion, twenty-one million, two hundred thirty thousand, one hundred thirteen".