113320231 has 2 divisors, whose sum is σ = 113320232. Its totient is φ = 113320230.

The previous prime is 113320217. The next prime is 113320247. The reversal of 113320231 is 132023311.

It is an a-pointer prime, because the next prime (113320247) can be obtained adding 113320231 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113320231 - 2¹⁵ = 113287463 is a prime.

It is a super-2 number, since 2×113320231² = 25682949507786722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113320211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56660115 + 56660116.

It is an arithmetic number, because the mean of its divisors is an integer number (56660116).

Almost surely, 2^113320231 is an apocalyptic number.

113320231 is a deficient number, since it is larger than the sum of its proper divisors (1).

113320231 is an equidigital number, since it uses as much as digits as its factorization.

113320231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 113320231 is about 10645.1975557056. The cubic root of 113320231 is about 483.9150737201.

Adding to 113320231 its reverse (132023311), we get a palindrome (245343542).

The spelling of 113320231 in words is "one hundred thirteen million, three hundred twenty thousand, two hundred thirty-one".