21132000001 has 8 divisors (see below), whose sum is σ = 24228018944. Its totient is φ = 18055271520.

The previous prime is 21131999981. The next prime is 21132000011. The reversal of 21132000001 is 10000023112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21132000001 is a prime.

It is a super-2 number, since 2×21132000001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21132000011) 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, 4820265 + ... + 4824646.

It is an arithmetic number, because the mean of its divisors is an integer number (3028502368).

Almost surely, 2^21132000001 is an apocalyptic number.

It is an amenable number.

21132000001 is a deficient number, since it is larger than the sum of its proper divisors (3096018943).

21132000001 is an equidigital number, since it uses as much as digits as its factorization.

21132000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9645231.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 21132000001 its reverse (10000023112), we get a palindrome (31132023113).

The spelling of 21132000001 in words is "twenty-one billion, one hundred thirty-two million, one", and thus it is an aban number.