21331443092 has 24 divisors (see below), whose sum is σ = 37617858432. Its totient is φ = 10583798400.

The previous prime is 21331443083. The next prime is 21331443101. The reversal of 21331443092 is 29034413312.

It is an interprime number because it is at equal distance from previous prime (21331443083) and next prime (21331443101).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233717 + ... + 311907.

It is an arithmetic number, because the mean of its divisors is an integer number (1567410768).

Almost surely, 2^21331443092 is an apocalyptic number.

It is an amenable number.

21331443092 is a deficient number, since it is larger than the sum of its proper divisors (16286415340).

21331443092 is a wasteful number, since it uses less digits than its factorization.

21331443092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78719 (or 78717 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 21331443092 in words is "twenty-one billion, three hundred thirty-one million, four hundred forty-three thousand, ninety-two".