21323022002 has 8 divisors (see below), whose sum is σ = 31997177712. Its totient is φ = 10657296100.

The previous prime is 21323022001. The next prime is 21323022011. The reversal of 21323022002 is 20022032312.

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

It is not an unprimeable number, because it can be changed into a prime (21323022001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2101124 + ... + 2111247.

It is an arithmetic number, because the mean of its divisors is an integer number (3999647214).

Almost surely, 2^21323022002 is an apocalyptic number.

21323022002 is a deficient number, since it is larger than the sum of its proper divisors (10674155710).

21323022002 is a wasteful number, since it uses less digits than its factorization.

21323022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214904.

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

Adding to 21323022002 its reverse (20022032312), we get a palindrome (41345054314).

The spelling of 21323022002 in words is "twenty-one billion, three hundred twenty-three million, twenty-two thousand, two".