113123201331 has 8 divisors (see below), whose sum is σ = 172378211584. Its totient is φ = 64641829320.

The previous prime is 113123201309. The next prime is 113123201407. The reversal of 113123201331 is 133102321311.

It is a happy number.

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

It is not a de Polignac number, because 113123201331 - 2⁵ = 113123201299 is a prime.

It is a super-2 number, since 2×113123201331² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5386819111 = 113123201331 / (1 + 1 + 3 + 1 + 2 + 3 + 2 + 0 + 1 + 3 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113123201298 and 113123201307.

It is not an unprimeable number, because it can be changed into a prime (113123201231) 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, 2693409535 + ... + 2693409576.

It is an arithmetic number, because the mean of its divisors is an integer number (21547276448).

Almost surely, 2^113123201331 is an apocalyptic number.

113123201331 is a deficient number, since it is larger than the sum of its proper divisors (59255010253).

113123201331 is an equidigital number, since it uses as much as digits as its factorization.

113123201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5386819121.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 113123201331 its reverse (133102321311), we get a palindrome (246225522642).

The spelling of 113123201331 in words is "one hundred thirteen billion, one hundred twenty-three million, two hundred one thousand, three hundred thirty-one".