21032313001 has 4 divisors (see below), whose sum is σ = 24036929152. Its totient is φ = 18027696852.

The previous prime is 21032312999. The next prime is 21032313013. The reversal of 21032313001 is 10031323012.

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 not a de Polignac number, because 21032313001 - 2¹ = 21032312999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21032313901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502308065 + ... + 1502308078.

It is an arithmetic number, because the mean of its divisors is an integer number (6009232288).

Almost surely, 2^21032313001 is an apocalyptic number.

It is an amenable number.

21032313001 is a deficient number, since it is larger than the sum of its proper divisors (3004616151).

21032313001 is an equidigital number, since it uses as much as digits as its factorization.

21032313001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004616150.

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

Adding to 21032313001 its reverse (10031323012), we get a palindrome (31063636013).

The spelling of 21032313001 in words is "twenty-one billion, thirty-two million, three hundred thirteen thousand, one".