21302303331010 has 32 divisors (see below), whose sum is σ = 43722736615152. Its totient is φ = 7402791383040.

The previous prime is 21302303330989. The next prime is 21302303331011. The reversal of 21302303331010 is 1013330320312.

It can be written as a sum of positive squares in 8 ways, for example, as 4169351526201 + 17132951804809 = 2041899^2 + 4139197^2 .

It is not an unprimeable number, because it can be changed into a prime (21302303331011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4819523431 + ... + 4819527850.

Almost surely, 2^{21302303331010} is an apocalyptic number.

21302303331010 is an abundant number, since it is smaller than the sum of its proper divisors (22420433284142).

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

21302303331010 is a wasteful number, since it uses less digits than its factorization.

21302303331010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9639051318.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 21302303331010 its reverse (1013330320312), we get a palindrome (22315633651322).

The spelling of 21302303331010 in words is "twenty-one trillion, three hundred two billion, three hundred three million, three hundred thirty-one thousand, ten".