113169031 has 2 divisors, whose sum is σ = 113169032. Its totient is φ = 113169030.

The previous prime is 113169013. The next prime is 113169041. The reversal of 113169031 is 130961311.

It is a happy number.

Together with previous prime (113169013) 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 113169031 - 2⁵ = 113168999 is a prime.

It is a super-2 number, since 2×113169031² = 25614459154957922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113168987 and 113169005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113169011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56584515 + 56584516.

It is an arithmetic number, because the mean of its divisors is an integer number (56584516).

Almost surely, 2^113169031 is an apocalyptic number.

113169031 is the 4758-th centered decagonal number.

113169031 is a deficient number, since it is larger than the sum of its proper divisors (1).

113169031 is an equidigital number, since it uses as much as digits as its factorization.

113169031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 113169031 is about 10638.0933912050. The cubic root of 113169031 is about 483.6997531645.

The spelling of 113169031 in words is "one hundred thirteen million, one hundred sixty-nine thousand, thirty-one".