21264035256119 has 2 divisors, whose sum is σ = 21264035256120. Its totient is φ = 21264035256118.

The previous prime is 21264035256097. The next prime is 21264035256133. The reversal of 21264035256119 is 91165253046212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21264035256119 - 2⁴⁴ = 3671849211703 is a prime.

It is a super-2 number, since 2×21264035256119² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21264035256179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10632017628059 + 10632017628060.

It is an arithmetic number, because the mean of its divisors is an integer number (10632017628060).

Almost surely, 2^{21264035256119} is an apocalyptic number.

21264035256119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21264035256119 is an equidigital number, since it uses as much as digits as its factorization.

21264035256119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 21264035256119 in words is "twenty-one trillion, two hundred sixty-four billion, thirty-five million, two hundred fifty-six thousand, one hundred nineteen".