231180117 has 16 divisors (see below), whose sum is σ = 358922880. Its totient is φ = 129609792.

The previous prime is 231180071. The next prime is 231180119. The reversal of 231180117 is 711081132.

It is a happy number.

It is not a de Polignac number, because 231180117 - 2¹⁰ = 231179093 is a prime.

It is a super-2 number, since 2×231180117² = 106888492992267378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231180119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102742 + ... + 104967.

It is an arithmetic number, because the mean of its divisors is an integer number (22432680).

Almost surely, 2^231180117 is an apocalyptic number.

It is an amenable number.

231180117 is a deficient number, since it is larger than the sum of its proper divisors (127742763).

231180117 is a wasteful number, since it uses less digits than its factorization.

231180117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207772.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 231180117 is about 15204.6084132410. The cubic root of 231180117 is about 613.7386773587.

It can be divided in two parts, 2311 and 80117, that added together give a palindrome (82428).

The spelling of 231180117 in words is "two hundred thirty-one million, one hundred eighty thousand, one hundred seventeen".