113331320231 has 2 divisors, whose sum is σ = 113331320232. Its totient is φ = 113331320230.

The previous prime is 113331320197. The next prime is 113331320237. The reversal of 113331320231 is 132023133311.

It is a strong prime.

It is an emirp because it is prime and its reverse (132023133311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113331320231 is a prime.

It is a super-2 number, since 2×113331320231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113331320197 and 113331320206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113331320237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56665660115 + 56665660116.

It is an arithmetic number, because the mean of its divisors is an integer number (56665660116).

Almost surely, 2^113331320231 is an apocalyptic number.

113331320231 is a deficient number, since it is larger than the sum of its proper divisors (1).

113331320231 is an equidigital number, since it uses as much as digits as its factorization.

113331320231 is an odious number, because the sum of its binary digits is odd.

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

Adding to 113331320231 its reverse (132023133311), we get a palindrome (245354453542).

The spelling of 113331320231 in words is "one hundred thirteen billion, three hundred thirty-one million, three hundred twenty thousand, two hundred thirty-one".