21230132033101 has 4 divisors (see below), whose sum is σ = 21230169960412. Its totient is φ = 21230094105792.

The previous prime is 21230132033053. The next prime is 21230132033167. The reversal of 21230132033101 is 10133023103212.

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 1634025324100 + 19596106709001 = 1278290^2 + 4426749^2 .

It is a cyclic number.

It is not a de Polignac number, because 21230132033101 - 2²⁵ = 21230098478669 is a prime.

It is a super-2 number, since 2×21230132033101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230132033191) 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, 18111246 + ... + 19247791.

It is an arithmetic number, because the mean of its divisors is an integer number (5307542490103).

Almost surely, 2^{21230132033101} is an apocalyptic number.

It is an amenable number.

21230132033101 is a deficient number, since it is larger than the sum of its proper divisors (37927311).

21230132033101 is an equidigital number, since it uses as much as digits as its factorization.

21230132033101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37927310.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21230132033101 its reverse (10133023103212), we get a palindrome (31363155136313).

The spelling of 21230132033101 in words is "twenty-one trillion, two hundred thirty billion, one hundred thirty-two million, thirty-three thousand, one hundred one".