117011372731321 has 4 divisors (see below), whose sum is σ = 117054887562100. Its totient is φ = 116967857900544.

The previous prime is 117011372731271. The next prime is 117011372731327. The reversal of 117011372731321 is 123137273110711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5533145925696 + 111478226805625 = 2352264^2 + 10558325^2 .

It is a cyclic number.

It is not a de Polignac number, because 117011372731321 - 2²⁵ = 117011339176889 is a prime.

It is a super-2 number, since 2×117011372731321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117011372731327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21757411356 + ... + 21757416733.

It is an arithmetic number, because the mean of its divisors is an integer number (29263721890525).

Almost surely, 2^{117011372731321} is an apocalyptic number.

It is an amenable number.

117011372731321 is a deficient number, since it is larger than the sum of its proper divisors (43514830779).

117011372731321 is an equidigital number, since it uses as much as digits as its factorization.

117011372731321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43514830778.

The product of its (nonzero) digits is 37044, while the sum is 40.

The spelling of 117011372731321 in words is "one hundred seventeen trillion, eleven billion, three hundred seventy-two million, seven hundred thirty-one thousand, three hundred twenty-one".