21132132497713 has 2 divisors, whose sum is σ = 21132132497714. Its totient is φ = 21132132497712.

The previous prime is 21132132497629. The next prime is 21132132497821. The reversal of 21132132497713 is 31779423123112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14756138842384 + 6375993655329 = 3841372^2 + 2525073^2 .

It is a cyclic number.

It is not a de Polignac number, because 21132132497713 - 2²⁵ = 21132098943281 is a prime.

It is not a weakly prime, because it can be changed into another prime (21132132497213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566066248856 + 10566066248857.

It is an arithmetic number, because the mean of its divisors is an integer number (10566066248857).

Almost surely, 2^{21132132497713} is an apocalyptic number.

It is an amenable number.

21132132497713 is a deficient number, since it is larger than the sum of its proper divisors (1).

21132132497713 is an equidigital number, since it uses as much as digits as its factorization.

21132132497713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 46.

The spelling of 21132132497713 in words is "twenty-one trillion, one hundred thirty-two billion, one hundred thirty-two million, four hundred ninety-seven thousand, seven hundred thirteen".