12027511919 has 2 divisors, whose sum is σ = 12027511920. Its totient is φ = 12027511918.

The previous prime is 12027511861. The next prime is 12027511921. The reversal of 12027511919 is 91911572021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12027511919 - 2²⁰ = 12026463343 is a prime.

It is a super-2 number, since 2×12027511919² (a number of 21 digits) contains 22 as substring.

Together with 12027511921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12027511519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6013755959 + 6013755960.

It is an arithmetic number, because the mean of its divisors is an integer number (6013755960).

Almost surely, 2^12027511919 is an apocalyptic number.

12027511919 is a deficient number, since it is larger than the sum of its proper divisors (1).

12027511919 is an equidigital number, since it uses as much as digits as its factorization.

12027511919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 38.

The spelling of 12027511919 in words is "twelve billion, twenty-seven million, five hundred eleven thousand, nine hundred nineteen".