118211113231 has 2 divisors, whose sum is σ = 118211113232. Its totient is φ = 118211113230.

The previous prime is 118211113211. The next prime is 118211113259. The reversal of 118211113231 is 132311112811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118211113231 - 2⁵ = 118211113199 is a prime.

It is a super-2 number, since 2×118211113231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 118211113196 and 118211113205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118211113211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59105556615 + 59105556616.

It is an arithmetic number, because the mean of its divisors is an integer number (59105556616).

Almost surely, 2^118211113231 is an apocalyptic number.

118211113231 is a deficient number, since it is larger than the sum of its proper divisors (1).

118211113231 is an equidigital number, since it uses as much as digits as its factorization.

118211113231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 25.

The spelling of 118211113231 in words is "one hundred eighteen billion, two hundred eleven million, one hundred thirteen thousand, two hundred thirty-one".