1113112331 has 2 divisors, whose sum is σ = 1113112332. Its totient is φ = 1113112330.

The previous prime is 1113112313. The next prime is 1113112337. The reversal of 1113112331 is 1332113111.

Together with previous prime (1113112313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1113112331 - 2⁶ = 1113112267 is a prime.

It is a super-2 number, since 2×1113112331² = 2478038122848507122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1113112337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556556165 + 556556166.

It is an arithmetic number, because the mean of its divisors is an integer number (556556166).

Almost surely, 2^1113112331 is an apocalyptic number.

1113112331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113112331 is an equidigital number, since it uses as much as digits as its factorization.

1113112331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54, while the sum is 17.

The square root of 1113112331 is about 33363.3381273517. The cubic root of 1113112331 is about 1036.3656212505.

Adding to 1113112331 its reverse (1332113111), we get a palindrome (2445225442).

The spelling of 1113112331 in words is "one billion, one hundred thirteen million, one hundred twelve thousand, three hundred thirty-one".