21293591119 has 2 divisors, whose sum is σ = 21293591120. Its totient is φ = 21293591118.

The previous prime is 21293591093. The next prime is 21293591129. The reversal of 21293591119 is 91119539212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21293591119 - 2⁵ = 21293591087 is a prime.

It is a super-2 number, since 2×21293591119² (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 (21293591129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10646795559 + 10646795560.

It is an arithmetic number, because the mean of its divisors is an integer number (10646795560).

Almost surely, 2^21293591119 is an apocalyptic number.

21293591119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21293591119 is an equidigital number, since it uses as much as digits as its factorization.

21293591119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 43.

The spelling of 21293591119 in words is "twenty-one billion, two hundred ninety-three million, five hundred ninety-one thousand, one hundred nineteen".