18115112941 has 2 divisors, whose sum is σ = 18115112942. Its totient is φ = 18115112940.

The previous prime is 18115112927. The next prime is 18115112987. The reversal of 18115112941 is 14921151181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18071156041 + 43956900 = 134429^2 + 6630^2 .

It is a cyclic number.

It is not a de Polignac number, because 18115112941 - 2⁹ = 18115112429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18115112897 and 18115112906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18115112441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9057556470 + 9057556471.

It is an arithmetic number, because the mean of its divisors is an integer number (9057556471).

Almost surely, 2^18115112941 is an apocalyptic number.

It is an amenable number.

18115112941 is a deficient number, since it is larger than the sum of its proper divisors (1).

18115112941 is an equidigital number, since it uses as much as digits as its factorization.

18115112941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 34.

The spelling of 18115112941 in words is "eighteen billion, one hundred fifteen million, one hundred twelve thousand, nine hundred forty-one".