113215331 has 2 divisors, whose sum is σ = 113215332. Its totient is φ = 113215330.

The previous prime is 113215313. The next prime is 113215337. The reversal of 113215331 is 133512311.

Together with previous prime (113215313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (133512311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113215331 - 2¹⁸ = 112953187 is a prime.

It is a super-2 number, since 2×113215331² = 25635422346879122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (113215337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56607665 + 56607666.

It is an arithmetic number, because the mean of its divisors is an integer number (56607666).

Almost surely, 2^113215331 is an apocalyptic number.

113215331 is a deficient number, since it is larger than the sum of its proper divisors (1).

113215331 is an equidigital number, since it uses as much as digits as its factorization.

113215331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270, while the sum is 20.

The square root of 113215331 is about 10640.2693105015. The cubic root of 113215331 is about 483.7657083260.

Adding to 113215331 its reverse (133512311), we get a palindrome (246727642).

The spelling of 113215331 in words is "one hundred thirteen million, two hundred fifteen thousand, three hundred thirty-one".