21132321301 has 16 divisors (see below), whose sum is σ = 26087625088. Its totient is φ = 16669540800.

The previous prime is 21132321293. The next prime is 21132321307. The reversal of 21132321301 is 10312323112.

It is a cyclic number.

It is not a de Polignac number, because 21132321301 - 2³ = 21132321293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132321307) 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 15 ways as a sum of consecutive naturals, for example, 320670 + ... + 380911.

It is an arithmetic number, because the mean of its divisors is an integer number (1630476568).

Almost surely, 2^21132321301 is an apocalyptic number.

It is an amenable number.

21132321301 is a deficient number, since it is larger than the sum of its proper divisors (4955303787).

21132321301 is a wasteful number, since it uses less digits than its factorization.

21132321301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701932.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21132321301 its reverse (10312323112), we get a palindrome (31444644413).

The spelling of 21132321301 in words is "twenty-one billion, one hundred thirty-two million, three hundred twenty-one thousand, three hundred one".