21320000301 has 16 divisors (see below), whose sum is σ = 29942576640. Its totient is φ = 13456367280.

The previous prime is 21320000279. The next prime is 21320000309. The reversal of 21320000301 is 10300002312.

It is a happy number.

It is not a de Polignac number, because 21320000301 - 2²⁷ = 21185782573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21320000309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35985 + ... + 209606.

It is an arithmetic number, because the mean of its divisors is an integer number (1871411040).

Almost surely, 2^21320000301 is an apocalyptic number.

It is an amenable number.

21320000301 is a deficient number, since it is larger than the sum of its proper divisors (8622576339).

21320000301 is a wasteful number, since it uses less digits than its factorization.

21320000301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247136.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 21320000301 its reverse (10300002312), we get a palindrome (31620002613).

The spelling of 21320000301 in words is "twenty-one billion, three hundred twenty million, three hundred one", and thus it is an aban number.