117012561201 has 20 divisors (see below), whose sum is σ = 175191170352. Its totient is φ = 77832259128.

The previous prime is 117012561163. The next prime is 117012561251. The reversal of 117012561201 is 102165210711.

117012561201 is a `hidden beast` number, since 1 + 1 + 70 + 12 + 561 + 20 + 1 = 666.

It is not a de Polignac number, because 117012561201 - 2⁶ = 117012561137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (117012561251) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1594591 + ... + 1666356.

Almost surely, 2^117012561201 is an apocalyptic number.

It is an amenable number.

117012561201 is a deficient number, since it is larger than the sum of its proper divisors (58178609151).

117012561201 is an equidigital number, since it uses as much as digits as its factorization.

117012561201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261402 (or 3261393 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 27.

Adding to 117012561201 its reverse (102165210711), we get a palindrome (219177771912).

The spelling of 117012561201 in words is "one hundred seventeen billion, twelve million, five hundred sixty-one thousand, two hundred one".