21002342296 has 16 divisors (see below), whose sum is σ = 42408576000. Its totient is φ = 9693388704.

The previous prime is 21002342293. The next prime is 21002342297. The reversal of 21002342296 is 69224320012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002342293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100972696 + ... + 100972903.

It is an arithmetic number, because the mean of its divisors is an integer number (2650536000).

Almost surely, 2^21002342296 is an apocalyptic number.

21002342296 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

21002342296 is an abundant number, since it is smaller than the sum of its proper divisors (21406233704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21002342296 is a wasteful number, since it uses less digits than its factorization.

21002342296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201945618 (or 201945614 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 21002342296 in words is "twenty-one billion, two million, three hundred forty-two thousand, two hundred ninety-six".