12081040919 has 2 divisors, whose sum is σ = 12081040920. Its totient is φ = 12081040918.

The previous prime is 12081040891. The next prime is 12081040981. The reversal of 12081040919 is 91904018021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12081040919 is a prime.

It is a super-2 number, since 2×12081040919² (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 (12081040219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6040520459 + 6040520460.

It is an arithmetic number, because the mean of its divisors is an integer number (6040520460).

Almost surely, 2^12081040919 is an apocalyptic number.

12081040919 is a deficient number, since it is larger than the sum of its proper divisors (1).

12081040919 is an equidigital number, since it uses as much as digits as its factorization.

12081040919 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 12081040919 in words is "twelve billion, eighty-one million, forty thousand, nine hundred nineteen".