21323202002 has 4 divisors (see below), whose sum is σ = 31984803006. Its totient is φ = 10661601000.

The previous prime is 21323201959. The next prime is 21323202011. The reversal of 21323202002 is 20020232312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14737717201 + 6585484801 = 121399^2 + 81151^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5330800499 + ... + 5330800502.

Almost surely, 2^21323202002 is an apocalyptic number.

21323202002 is a deficient number, since it is larger than the sum of its proper divisors (10661601004).

21323202002 is a wasteful number, since it uses less digits than its factorization.

21323202002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10661601003.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 21323202002 its reverse (20020232312), we get a palindrome (41343434314).

The spelling of 21323202002 in words is "twenty-one billion, three hundred twenty-three million, two hundred two thousand, two".