21131022143199 has 16 divisors (see below), whose sum is σ = 28596286780160. Its totient is φ = 13876568576640.

The previous prime is 21131022143191. The next prime is 21131022143213. The reversal of 21131022143199 is 99134122013112.

It is not a de Polignac number, because 21131022143199 - 2³ = 21131022143191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21131022143191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3436119 + ... + 7353159.

It is an arithmetic number, because the mean of its divisors is an integer number (1787267923760).

Almost surely, 2^{21131022143199} is an apocalyptic number.

21131022143199 is a deficient number, since it is larger than the sum of its proper divisors (7465264636961).

21131022143199 is a wasteful number, since it uses less digits than its factorization.

21131022143199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943950.

The product of its (nonzero) digits is 23328, while the sum is 39.

The spelling of 21131022143199 in words is "twenty-one trillion, one hundred thirty-one billion, twenty-two million, one hundred forty-three thousand, one hundred ninety-nine".