117211312113 has 32 divisors (see below), whose sum is σ = 188126576640. Its totient is φ = 63412761600.

The previous prime is 117211312039. The next prime is 117211312117. The reversal of 117211312113 is 311213112711.

It is a happy number.

It is not a de Polignac number, because 117211312113 - 2⁹ = 117211311601 is a prime.

It is a super-2 number, since 2×117211312113² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117211312117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 547056 + ... + 730542.

It is an arithmetic number, because the mean of its divisors is an integer number (5878955520).

Almost surely, 2^117211312113 is an apocalyptic number.

It is an amenable number.

117211312113 is a deficient number, since it is larger than the sum of its proper divisors (70915264527).

117211312113 is a wasteful number, since it uses less digits than its factorization.

117211312113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185117.

The product of its digits is 252, while the sum is 24.

Adding to 117211312113 its reverse (311213112711), we get a palindrome (428424424824).

The spelling of 117211312113 in words is "one hundred seventeen billion, two hundred eleven million, three hundred twelve thousand, one hundred thirteen".