21323002 has 8 divisors (see below), whose sum is σ = 32054976. Its totient is φ = 10638012.

The previous prime is 21322999. The next prime is 21323011. The reversal of 21323002 is 20032312.

It is a happy number.

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, 10588 + ... + 12439.

It is an arithmetic number, because the mean of its divisors is an integer number (4006872).

Almost surely, 2^21323002 is an apocalyptic number.

21323002 is a deficient number, since it is larger than the sum of its proper divisors (10731974).

21323002 is a wasteful number, since it uses less digits than its factorization.

21323002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23492.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 21323002 is about 4617.6836184390. The cubic root of 21323002 is about 277.2997315958.

Adding to 21323002 its reverse (20032312), we get a palindrome (41355314).

The spelling of 21323002 in words is "twenty-one million, three hundred twenty-three thousand, two".