21234013041 has 4 divisors (see below), whose sum is σ = 28312017392. Its totient is φ = 14156008692.

The previous prime is 21234013033. The next prime is 21234013067. The reversal of 21234013041 is 14031043212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 21234013041 - 2³ = 21234013033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21234012999 and 21234013017.

It is not an unprimeable number, because it can be changed into a prime (21234013091) 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, 3539002171 + ... + 3539002176.

It is an arithmetic number, because the mean of its divisors is an integer number (7078004348).

Almost surely, 2^21234013041 is an apocalyptic number.

It is an amenable number.

21234013041 is a deficient number, since it is larger than the sum of its proper divisors (7078004351).

21234013041 is an equidigital number, since it uses as much as digits as its factorization.

21234013041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7078004350.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21234013041 its reverse (14031043212), we get a palindrome (35265056253).

The spelling of 21234013041 in words is "twenty-one billion, two hundred thirty-four million, thirteen thousand, forty-one".