117043431 has 4 divisors (see below), whose sum is σ = 156057912. Its totient is φ = 78028952.

The previous prime is 117043417. The next prime is 117043471. The reversal of 117043431 is 134340711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117043431 - 2¹⁰ = 117042407 is a prime.

It is a super-2 number, since 2×117043431² = 27398329480503522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117043411) 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, 19507236 + ... + 19507241.

It is an arithmetic number, because the mean of its divisors is an integer number (39014478).

Almost surely, 2^117043431 is an apocalyptic number.

117043431 is a deficient number, since it is larger than the sum of its proper divisors (39014481).

117043431 is an equidigital number, since it uses as much as digits as its factorization.

117043431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39014480.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 117043431 is about 10818.6612388040. The cubic root of 117043431 is about 489.1578356425.

The spelling of 117043431 in words is "one hundred seventeen million, forty-three thousand, four hundred thirty-one".