18011000131 has 2 divisors, whose sum is σ = 18011000132. Its totient is φ = 18011000130.

The previous prime is 18011000129. The next prime is 18011000141. The reversal of 18011000131 is 13100011081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18011000131 - 2¹ = 18011000129 is a prime.

It is a super-2 number, since 2×18011000131² (a number of 21 digits) contains 22 as substring.

Together with 18011000129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (18011000141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9005500065 + 9005500066.

It is an arithmetic number, because the mean of its divisors is an integer number (9005500066).

Almost surely, 2^18011000131 is an apocalyptic number.

18011000131 is a deficient number, since it is larger than the sum of its proper divisors (1).

18011000131 is an equidigital number, since it uses as much as digits as its factorization.

18011000131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 16.

The spelling of 18011000131 in words is "eighteen billion, eleven million, one hundred thirty-one", and thus it is an aban number.