21323311202 has 8 divisors (see below), whose sum is σ = 31988804700. Its totient is φ = 10660376304.

The previous prime is 21323311199. The next prime is 21323311213. The reversal of 21323311202 is 20211332312.

It can be written as a sum of positive squares in 2 ways, for example, as 17729188801 + 3594122401 = 133151^2 + 59951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618677 + ... + 652232.

Almost surely, 2^21323311202 is an apocalyptic number.

21323311202 is a deficient number, since it is larger than the sum of its proper divisors (10665493498).

21323311202 is a wasteful number, since it uses less digits than its factorization.

21323311202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279300.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21323311202 its reverse (20211332312), we get a palindrome (41534643514).

The spelling of 21323311202 in words is "twenty-one billion, three hundred twenty-three million, three hundred eleven thousand, two hundred two".