21132041999 has 2 divisors, whose sum is σ = 21132042000. Its totient is φ = 21132041998.

The previous prime is 21132041989. The next prime is 21132042023. The reversal of 21132041999 is 99914023112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21132041999 - 2²⁰ = 21130993423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21132041989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566020999 + 10566021000.

It is an arithmetic number, because the mean of its divisors is an integer number (10566021000).

Almost surely, 2^21132041999 is an apocalyptic number.

21132041999 is a deficient number, since it is larger than the sum of its proper divisors (1).

21132041999 is an equidigital number, since it uses as much as digits as its factorization.

21132041999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 21132041999 in words is "twenty-one billion, one hundred thirty-two million, forty-one thousand, nine hundred ninety-nine".