21303331301210 has 24 divisors (see below), whose sum is σ = 44606567174580. Its totient is φ = 7303999303104.

The previous prime is 21303331301159. The next prime is 21303331301221. The reversal of 21303331301210 is 1210313330312.

It can be written as a sum of positive squares in 2 ways, for example, as 20899352839561 + 403978461649 = 4571581^2 + 635593^2 .

It is a super-2 number, since 2×21303331301210² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21738092675 + ... + 21738093654.

Almost surely, 2^{21303331301210} is an apocalyptic number.

21303331301210 is an abundant number, since it is smaller than the sum of its proper divisors (23303235873370).

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

21303331301210 is a wasteful number, since it uses less digits than its factorization.

21303331301210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43476186350 (or 43476186343 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 21303331301210 its reverse (1210313330312), we get a palindrome (22513644631522).

The spelling of 21303331301210 in words is "twenty-one trillion, three hundred three billion, three hundred thirty-one million, three hundred one thousand, two hundred ten".