23131402130113 has 4 divisors (see below), whose sum is σ = 23133414092740. Its totient is φ = 23129390167488.

The previous prime is 23131402130071. The next prime is 23131402130131. The reversal of 23131402130113 is 31103120413132.

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 6963861821569 + 16167540308544 = 2638913^2 + 4020888^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23131402130113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23131402130143) 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, 1005964068 + ... + 1005987061.

It is an arithmetic number, because the mean of its divisors is an integer number (5783353523185).

Almost surely, 2^{23131402130113} is an apocalyptic number.

It is an amenable number.

23131402130113 is a deficient number, since it is larger than the sum of its proper divisors (2011962627).

23131402130113 is a wasteful number, since it uses less digits than its factorization.

23131402130113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011962626.

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

Adding to 23131402130113 its reverse (31103120413132), we get a palindrome (54234522543245).

The spelling of 23131402130113 in words is "twenty-three trillion, one hundred thirty-one billion, four hundred two million, one hundred thirty thousand, one hundred thirteen".