21003322303120 has 80 divisors (see below), whose sum is σ = 49452983377920. Its totient is φ = 8294626828800.

The previous prime is 21003322303111. The next prime is 21003322303147. The reversal of 21003322303120 is 2130322330012.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×21003322303120² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21003322303091 and 21003322303100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185188830 + ... + 185302210.

It is an arithmetic number, because the mean of its divisors is an integer number (618162292224).

Almost surely, 2^{21003322303120} is an apocalyptic number.

21003322303120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21003322303120 is an abundant number, since it is smaller than the sum of its proper divisors (28449661074800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21003322303120 is a wasteful number, since it uses less digits than its factorization.

21003322303120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142784 (or 142778 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21003322303120 its reverse (2130322330012), we get a palindrome (23133644633132).

The spelling of 21003322303120 in words is "twenty-one trillion, three billion, three hundred twenty-two million, three hundred three thousand, one hundred twenty".