118462890731 has 2 divisors, whose sum is σ = 118462890732. Its totient is φ = 118462890730.

The previous prime is 118462890697. The next prime is 118462890737. The reversal of 118462890731 is 137098264811.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (137098264811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118462890731 - 2¹⁴ = 118462874347 is a prime.

It is a super-2 number, since 2×118462890731² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 118462890731.

It is not a weakly prime, because it can be changed into another prime (118462890737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59231445365 + 59231445366.

It is an arithmetic number, because the mean of its divisors is an integer number (59231445366).

Almost surely, 2^118462890731 is an apocalyptic number.

118462890731 is a deficient number, since it is larger than the sum of its proper divisors (1).

118462890731 is an equidigital number, since it uses as much as digits as its factorization.

118462890731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 118462890731 in words is "one hundred eighteen billion, four hundred sixty-two million, eight hundred ninety thousand, seven hundred thirty-one".