21310030322 has 24 divisors (see below), whose sum is σ = 37194213420. Its totient is φ = 9130319520.

The previous prime is 21310030321. The next prime is 21310030331. The reversal of 21310030322 is 22303001312.

It can be written as a sum of positive squares in 2 ways, for example, as 21152502721 + 157527601 = 145439^2 + 12551^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21310030322.

It is not an unprimeable number, because it can be changed into a prime (21310030321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346004 + ... + 402912.

Almost surely, 2^21310030322 is an apocalyptic number.

21310030322 is a deficient number, since it is larger than the sum of its proper divisors (15884183098).

21310030322 is a wasteful number, since it uses less digits than its factorization.

21310030322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60746 (or 60739 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21310030322 its reverse (22303001312), we get a palindrome (43613031634).

The spelling of 21310030322 in words is "twenty-one billion, three hundred ten million, thirty thousand, three hundred twenty-two".