21202320332 has 6 divisors (see below), whose sum is σ = 37104060588. Its totient is φ = 10601160164.

The previous prime is 21202320323. The next prime is 21202320361. The reversal of 21202320332 is 23302320212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2650290038 + ... + 2650290045.

It is an arithmetic number, because the mean of its divisors is an integer number (6184010098).

Almost surely, 2^21202320332 is an apocalyptic number.

It is an amenable number.

21202320332 is a deficient number, since it is larger than the sum of its proper divisors (15901740256).

21202320332 is a wasteful number, since it uses less digits than its factorization.

21202320332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300580087 (or 5300580085 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21202320332 its reverse (23302320212), we get a palindrome (44504640544).

The spelling of 21202320332 in words is "twenty-one billion, two hundred two million, three hundred twenty thousand, three hundred thirty-two".