117031511 has 4 divisors (see below), whose sum is σ = 117498024. Its totient is φ = 116565000.

The previous prime is 117031471. The next prime is 117031517. The reversal of 117031511 is 115130711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115130711 = 83 ⋅1387117.

It is a cyclic number.

It is not a de Polignac number, because 117031511 - 2²⁶ = 49922647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117031517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232880 + ... + 233381.

It is an arithmetic number, because the mean of its divisors is an integer number (29374506).

Almost surely, 2^117031511 is an apocalyptic number.

117031511 is a deficient number, since it is larger than the sum of its proper divisors (466513).

117031511 is an equidigital number, since it uses as much as digits as its factorization.

117031511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466512.

The product of its (nonzero) digits is 105, while the sum is 20.

The square root of 117031511 is about 10818.1103248211. The cubic root of 117031511 is about 489.1412293871.

The spelling of 117031511 in words is "one hundred seventeen million, thirty-one thousand, five hundred eleven".