117012171506731 has 2 divisors, whose sum is σ = 117012171506732. Its totient is φ = 117012171506730.

The previous prime is 117012171506729. The next prime is 117012171506767. The reversal of 117012171506731 is 137605171210711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117012171506731 - 2¹ = 117012171506729 is a prime.

It is a super-2 number, since 2×117012171506731² (a number of 29 digits) contains 22 as substring.

Together with 117012171506729, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (117012171506831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58506085753365 + 58506085753366.

It is an arithmetic number, because the mean of its divisors is an integer number (58506085753366).

Almost surely, 2^{117012171506731} is an apocalyptic number.

117012171506731 is a deficient number, since it is larger than the sum of its proper divisors (1).

117012171506731 is an equidigital number, since it uses as much as digits as its factorization.

117012171506731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 43.

The spelling of 117012171506731 in words is "one hundred seventeen trillion, twelve billion, one hundred seventy-one million, five hundred six thousand, seven hundred thirty-one".