21303323121110 has 16 divisors (see below), whose sum is σ = 40364191177200. Its totient is φ = 8072838235296.

The previous prime is 21303323121109. The next prime is 21303323121169. The reversal of 21303323121110 is 1112132330312.

It is a congruent number.

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, 56061376445 + ... + 56061376824.

It is an arithmetic number, because the mean of its divisors is an integer number (2522761948575).

Almost surely, 2^{21303323121110} is an apocalyptic number.

21303323121110 is a deficient number, since it is larger than the sum of its proper divisors (19060868056090).

21303323121110 is a wasteful number, since it uses less digits than its factorization.

21303323121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112122753295.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21303323121110 its reverse (1112132330312), we get a palindrome (22415455451422).

The spelling of 21303323121110 in words is "twenty-one trillion, three hundred three billion, three hundred twenty-three million, one hundred twenty-one thousand, one hundred ten".