21514052340511 has 2 divisors, whose sum is σ = 21514052340512. Its totient is φ = 21514052340510.

The previous prime is 21514052340463. The next prime is 21514052340533. The reversal of 21514052340511 is 11504325041512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21514052340511 - 2⁷ = 21514052340383 is a prime.

It is a super-2 number, since 2×21514052340511² (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 (21514052340581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10757026170255 + 10757026170256.

It is an arithmetic number, because the mean of its divisors is an integer number (10757026170256).

Almost surely, 2^{21514052340511} is an apocalyptic number.

21514052340511 is a deficient number, since it is larger than the sum of its proper divisors (1).

21514052340511 is an equidigital number, since it uses as much as digits as its factorization.

21514052340511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 21514052340511 in words is "twenty-one trillion, five hundred fourteen billion, fifty-two million, three hundred forty thousand, five hundred eleven".