21323011201 has 8 divisors (see below), whose sum is σ = 22016609024. Its totient is φ = 20629773360.

The previous prime is 21323011187. The next prime is 21323011219. The reversal of 21323011201 is 10211032312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21323011201 - 2⁵ = 21323011169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21323011261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33091 + ... + 209143.

It is an arithmetic number, because the mean of its divisors is an integer number (2752076128).

Almost surely, 2^21323011201 is an apocalyptic number.

It is an amenable number.

21323011201 is a deficient number, since it is larger than the sum of its proper divisors (693597823).

21323011201 is a wasteful number, since it uses less digits than its factorization.

21323011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179991.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21323011201 its reverse (10211032312), we get a palindrome (31534043513).

The spelling of 21323011201 in words is "twenty-one billion, three hundred twenty-three million, eleven thousand, two hundred one".