21322010313 has 24 divisors (see below), whose sum is σ = 31944077256. Its totient is φ = 13693536000.

The previous prime is 21322010299. The next prime is 21322010329. The reversal of 21322010313 is 31301022312.

21322010313 is a `hidden beast` number, since 21 + 322 + 0 + 10 + 313 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19210791609 + 2111218704 = 138603^2 + 45948^2 .

It is not a de Polignac number, because 21322010313 - 2²⁴ = 21305233097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21322010363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 283348 + ... + 350613.

It is an arithmetic number, because the mean of its divisors is an integer number (1331003219).

Almost surely, 2^21322010313 is an apocalyptic number.

It is an amenable number.

21322010313 is a deficient number, since it is larger than the sum of its proper divisors (10622066943).

21322010313 is a wasteful number, since it uses less digits than its factorization.

21322010313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634105 (or 634102 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21322010313 its reverse (31301022312), we get a palindrome (52623032625).

The spelling of 21322010313 in words is "twenty-one billion, three hundred twenty-two million, ten thousand, three hundred thirteen".