117731130 has 32 divisors (see below), whose sum is σ = 308242368. Its totient is φ = 28540800.

The previous prime is 117731051. The next prime is 117731189. The reversal of 117731130 is 31137711.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 117731130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178051 + ... + 178710.

It is an arithmetic number, because the mean of its divisors is an integer number (9632574).

Almost surely, 2^117731130 is an apocalyptic number.

117731130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117731130 is an abundant number, since it is smaller than the sum of its proper divisors (190511238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117731130 is a wasteful number, since it uses less digits than its factorization.

117731130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356782.

The product of its (nonzero) digits is 441, while the sum is 24.

The square root of 117731130 is about 10850.3976885642. The cubic root of 117731130 is about 490.1139954129.

Adding to 117731130 its reverse (31137711), we get a palindrome (148868841).

The spelling of 117731130 in words is "one hundred seventeen million, seven hundred thirty-one thousand, one hundred thirty".