21130034300401 has 4 divisors (see below), whose sum is σ = 22755421554292. Its totient is φ = 19504647046512.

The previous prime is 21130034300387. The next prime is 21130034300447. The reversal of 21130034300401 is 10400343003112.

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 13063019918400 + 8067014382001 = 3614280^2 + 2840249^2 .

It is a cyclic number.

It is not a de Polignac number, because 21130034300401 - 2²⁵ = 21130000745969 is a prime.

It is a super-2 number, since 2×21130034300401² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21130034300461) 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, 812693626926 + ... + 812693626951.

It is an arithmetic number, because the mean of its divisors is an integer number (5688855388573).

Almost surely, 2^{21130034300401} is an apocalyptic number.

It is an amenable number.

21130034300401 is a deficient number, since it is larger than the sum of its proper divisors (1625387253891).

21130034300401 is a wasteful number, since it uses less digits than its factorization.

21130034300401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625387253890.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21130034300401 its reverse (10400343003112), we get a palindrome (31530377303513).

The spelling of 21130034300401 in words is "twenty-one trillion, one hundred thirty billion, thirty-four million, three hundred thousand, four hundred one".