113331143231 has 4 divisors (see below), whose sum is σ = 114370878600. Its totient is φ = 112291407864.

The previous prime is 113331143213. The next prime is 113331143257. The reversal of 113331143231 is 132341133311.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 113331143231 - 2¹⁴ = 113331126847 is a prime.

It is a super-2 number, since 2×113331143231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113331143231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113331143201) 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, 519867521 + ... + 519867738.

It is an arithmetic number, because the mean of its divisors is an integer number (28592719650).

Almost surely, 2^113331143231 is an apocalyptic number.

113331143231 is a deficient number, since it is larger than the sum of its proper divisors (1039735369).

113331143231 is a wasteful number, since it uses less digits than its factorization.

113331143231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039735368.

The product of its digits is 1944, while the sum is 26.

Adding to 113331143231 its reverse (132341133311), we get a palindrome (245672276542).

The spelling of 113331143231 in words is "one hundred thirteen billion, three hundred thirty-one million, one hundred forty-three thousand, two hundred thirty-one".