21120323002 has 16 divisors (see below), whose sum is σ = 32715044352. Its totient is φ = 10215570960.

The previous prime is 21120322991. The next prime is 21120323047. The reversal of 21120323002 is 20032302112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99768 + ... + 228460.

It is an arithmetic number, because the mean of its divisors is an integer number (2044690272).

Almost surely, 2^21120323002 is an apocalyptic number.

21120323002 is a deficient number, since it is larger than the sum of its proper divisors (11594721350).

21120323002 is a wasteful number, since it uses less digits than its factorization.

21120323002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131373.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21120323002 its reverse (20032302112), we get a palindrome (41152625114).

The spelling of 21120323002 in words is "twenty-one billion, one hundred twenty million, three hundred twenty-three thousand, two".