117208031 has 2 divisors, whose sum is σ = 117208032. Its totient is φ = 117208030.

The previous prime is 117208001. The next prime is 117208033. The reversal of 117208031 is 130802711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117208031 - 2⁶ = 117207967 is a prime.

It is a super-2 number, since 2×117208031² = 27475445061793922, which contains 22 as substring.

Together with 117208033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 117207988 and 117208006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117208033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58604015 + 58604016.

It is an arithmetic number, because the mean of its divisors is an integer number (58604016).

Almost surely, 2^117208031 is an apocalyptic number.

117208031 is a deficient number, since it is larger than the sum of its proper divisors (1).

117208031 is an equidigital number, since it uses as much as digits as its factorization.

117208031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 117208031 is about 10826.2657920448. The cubic root of 117208031 is about 489.3870316631.

The spelling of 117208031 in words is "one hundred seventeen million, two hundred eight thousand, thirty-one".