117520543231 has 48 divisors (see below), whose sum is σ = 153072998400. Its totient is φ = 87847695936.

The previous prime is 117520543219. The next prime is 117520543271. The reversal of 117520543231 is 132345025711.

It is not a de Polignac number, because 117520543231 - 2²¹ = 117518446079 is a prime.

It is a super-2 number, since 2×117520543231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117520543201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12445810 + ... + 12455248.

It is an arithmetic number, because the mean of its divisors is an integer number (3189020800).

Almost surely, 2^117520543231 is an apocalyptic number.

117520543231 is a deficient number, since it is larger than the sum of its proper divisors (35552455169).

117520543231 is a wasteful number, since it uses less digits than its factorization.

117520543231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9876 (or 9857 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

Adding to 117520543231 its reverse (132345025711), we get a palindrome (249865568942).

The spelling of 117520543231 in words is "one hundred seventeen billion, five hundred twenty million, five hundred forty-three thousand, two hundred thirty-one".