18031641119 has 2 divisors, whose sum is σ = 18031641120. Its totient is φ = 18031641118.

The previous prime is 18031641109. The next prime is 18031641169. The reversal of 18031641119 is 91114613081.

It is a weak prime.

It is an emirp because it is prime and its reverse (91114613081) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18031641119 is a prime.

It is a super-2 number, since 2×18031641119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18031641109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9015820559 + 9015820560.

It is an arithmetic number, because the mean of its divisors is an integer number (9015820560).

Almost surely, 2^18031641119 is an apocalyptic number.

18031641119 is a deficient number, since it is larger than the sum of its proper divisors (1).

18031641119 is an equidigital number, since it uses as much as digits as its factorization.

18031641119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 18031641119 in words is "eighteen billion, thirty-one million, six hundred forty-one thousand, one hundred nineteen".