113031031 has 2 divisors, whose sum is σ = 113031032. Its totient is φ = 113031030.

The previous prime is 113031013. The next prime is 113031091. The reversal of 113031031 is 130130311.

It is a happy number.

Together with previous prime (113031013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113031031 - 2⁵ = 113030999 is a prime.

It is a super-2 number, since 2×113031031² = 25552027937845922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113031091) 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, 56515515 + 56515516.

It is an arithmetic number, because the mean of its divisors is an integer number (56515516).

Almost surely, 2^113031031 is an apocalyptic number.

113031031 is a deficient number, since it is larger than the sum of its proper divisors (1).

113031031 is an equidigital number, since it uses as much as digits as its factorization.

113031031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 113031031 is about 10631.6052880080. The cubic root of 113031031 is about 483.5030629689.

Adding to 113031031 its reverse (130130311), we get a palindrome (243161342).

The spelling of 113031031 in words is "one hundred thirteen million, thirty-one thousand, thirty-one".