21092410441 has 4 divisors (see below), whose sum is σ = 21346535952. Its totient is φ = 20838284932.

The previous prime is 21092410421. The next prime is 21092410487. The reversal of 21092410441 is 14401429012.

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 a cyclic number.

It is not a de Polignac number, because 21092410441 - 2²⁵ = 21058856009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21092410421) 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, 127062631 + ... + 127062796.

It is an arithmetic number, because the mean of its divisors is an integer number (5336633988).

Almost surely, 2^21092410441 is an apocalyptic number.

It is an amenable number.

21092410441 is a deficient number, since it is larger than the sum of its proper divisors (254125511).

21092410441 is an equidigital number, since it uses as much as digits as its factorization.

21092410441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254125510.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 21092410441 its reverse (14401429012), we get a palindrome (35493839453).

The spelling of 21092410441 in words is "twenty-one billion, ninety-two million, four hundred ten thousand, four hundred forty-one".