21114262513207 has 2 divisors, whose sum is σ = 21114262513208. Its totient is φ = 21114262513206.

The previous prime is 21114262513121. The next prime is 21114262513301. The reversal of 21114262513207 is 70231526241112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21114262513207 - 2²³ = 21114254124599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21114262517207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10557131256603 + 10557131256604.

It is an arithmetic number, because the mean of its divisors is an integer number (10557131256604).

Almost surely, 2^{21114262513207} is an apocalyptic number.

21114262513207 is a deficient number, since it is larger than the sum of its proper divisors (1).

21114262513207 is an equidigital number, since it uses as much as digits as its factorization.

21114262513207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 21114262513207 its reverse (70231526241112), we get a palindrome (91345788754319).

The spelling of 21114262513207 in words is "twenty-one trillion, one hundred fourteen billion, two hundred sixty-two million, five hundred thirteen thousand, two hundred seven".