21132031130201 has 4 divisors (see below), whose sum is σ = 21349887121332. Its totient is φ = 20914175139072.

The previous prime is 21132031130149. The next prime is 21132031130207. The reversal of 21132031130201 is 10203113023112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15532655440201 + 5599375690000 = 3941149^2 + 2366300^2 .

It is a cyclic number.

It is not a de Polignac number, because 21132031130201 - 2⁶ = 21132031130137 is a prime.

It is a super-3 number, since 3×21132031130201³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21132031130207) 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, 108927995420 + ... + 108927995613.

It is an arithmetic number, because the mean of its divisors is an integer number (5337471780333).

Almost surely, 2^{21132031130201} is an apocalyptic number.

It is an amenable number.

21132031130201 is a deficient number, since it is larger than the sum of its proper divisors (217855991131).

21132031130201 is an equidigital number, since it uses as much as digits as its factorization.

21132031130201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217855991130.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21132031130201 its reverse (10203113023112), we get a palindrome (31335144153313).

The spelling of 21132031130201 in words is "twenty-one trillion, one hundred thirty-two billion, thirty-one million, one hundred thirty thousand, two hundred one".