21130430210341 has 4 divisors (see below), whose sum is σ = 21130574147692. Its totient is φ = 21130286272992.

The previous prime is 21130430210299. The next prime is 21130430210423. The reversal of 21130430210341 is 14301203403112.

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 8464340697316 + 12666089513025 = 2909354^2 + 3558945^2 .

It is a cyclic number.

It is not a de Polignac number, because 21130430210341 - 2⁷ = 21130430210213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130430210441) 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, 71748246 + ... + 72042151.

It is an arithmetic number, because the mean of its divisors is an integer number (5282643536923).

Almost surely, 2^{21130430210341} is an apocalyptic number.

It is an amenable number.

21130430210341 is a deficient number, since it is larger than the sum of its proper divisors (143937351).

21130430210341 is a wasteful number, since it uses less digits than its factorization.

21130430210341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143937350.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21130430210341 its reverse (14301203403112), we get a palindrome (35431633613453).

The spelling of 21130430210341 in words is "twenty-one trillion, one hundred thirty billion, four hundred thirty million, two hundred ten thousand, three hundred forty-one".