71112313 has 2 divisors, whose sum is σ = 71112314. Its totient is φ = 71112312.

The previous prime is 71112289. The next prime is 71112317. The reversal of 71112313 is 31321117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71098624 + 13689 = 8432^2 + 117^2 .

It is a cyclic number.

It is not a de Polignac number, because 71112313 - 2⁵ = 71112281 is a prime.

It is a super-2 number, since 2×71112313² = 10113922120419938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71112317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35556156 + 35556157.

It is an arithmetic number, because the mean of its divisors is an integer number (35556157).

Almost surely, 2^71112313 is an apocalyptic number.

It is an amenable number.

71112313 is a deficient number, since it is larger than the sum of its proper divisors (1).

71112313 is an equidigital number, since it uses as much as digits as its factorization.

71112313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126, while the sum is 19.

The square root of 71112313 is about 8432.8116900593. The cubic root of 71112313 is about 414.3000015400.

The spelling of 71112313 in words is "seventy-one million, one hundred twelve thousand, three hundred thirteen".