21310003322306 has 12 divisors (see below), whose sum is σ = 32852273204898. Its totient is φ = 10367028641952.

The previous prime is 21310003322303. The next prime is 21310003322327. The reversal of 21310003322306 is 60322330001312.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 20801270627281 + 508732695025 = 4560841^2 + 713255^2 .

It is not an unprimeable number, because it can be changed into a prime (21310003322303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3891524531 + ... + 3891530006.

Almost surely, 2^{21310003322306} is an apocalyptic number.

21310003322306 is a deficient number, since it is larger than the sum of its proper divisors (11542269882592).

21310003322306 is an equidigital number, since it uses as much as digits as its factorization.

21310003322306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7783054613 (or 7783054576 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 21310003322306 its reverse (60322330001312), we get a palindrome (81632333323618).

The spelling of 21310003322306 in words is "twenty-one trillion, three hundred ten billion, three million, three hundred twenty-two thousand, three hundred six".