21302313001 has 4 divisors (see below), whose sum is σ = 21409360000. Its totient is φ = 21195266004.

The previous prime is 21302312987. The next prime is 21302313007. The reversal of 21302313001 is 10031320312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21302313001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21302313007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53523201 + ... + 53523598.

It is an arithmetic number, because the mean of its divisors is an integer number (5352340000).

Almost surely, 2^21302313001 is an apocalyptic number.

It is an amenable number.

21302313001 is a deficient number, since it is larger than the sum of its proper divisors (107046999).

21302313001 is a wasteful number, since it uses less digits than its factorization.

21302313001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107046998.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21302313001 its reverse (10031320312), we get a palindrome (31333633313).

The spelling of 21302313001 in words is "twenty-one billion, three hundred two million, three hundred thirteen thousand, one".