113023231331 has 4 divisors (see below), whose sum is σ = 114023437032. Its totient is φ = 112023025632.

The previous prime is 113023231289. The next prime is 113023231379. The reversal of 113023231331 is 133132320311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133132320311 = 32783 ⋅4061017.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113023231331 is a prime.

It is a super-2 number, since 2×113023231331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113023231297 and 113023231306.

It is not an unprimeable number, because it can be changed into a prime (113023231231) 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, 500102681 + ... + 500102906.

It is an arithmetic number, because the mean of its divisors is an integer number (28505859258).

Almost surely, 2^113023231331 is an apocalyptic number.

113023231331 is a deficient number, since it is larger than the sum of its proper divisors (1000205701).

113023231331 is a wasteful number, since it uses less digits than its factorization.

113023231331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000205700.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 113023231331 its reverse (133132320311), we get a palindrome (246155551642).

The spelling of 113023231331 in words is "one hundred thirteen billion, twenty-three million, two hundred thirty-one thousand, three hundred thirty-one".