21341319902 has 16 divisors (see below), whose sum is σ = 38175777792. Its totient is φ = 8748615480.

The previous prime is 21341319899. The next prime is 21341319911. The reversal of 21341319902 is 20991314312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33138374 + ... + 33139017.

It is an arithmetic number, because the mean of its divisors is an integer number (2385986112).

Almost surely, 2^21341319902 is an apocalyptic number.

21341319902 is a deficient number, since it is larger than the sum of its proper divisors (16834457890).

21341319902 is a wasteful number, since it uses less digits than its factorization.

21341319902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66277423.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 21341319902 in words is "twenty-one billion, three hundred forty-one million, three hundred nineteen thousand, nine hundred two".