21113244341 has 8 divisors (see below), whose sum is σ = 24538395840. Its totient is φ = 17790336288.

The previous prime is 21113244337. The next prime is 21113244407. The reversal of 21113244341 is 14344231112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21113244341 - 2² = 21113244337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21113244341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113244311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25560416 + ... + 25561241.

It is an arithmetic number, because the mean of its divisors is an integer number (3067299480).

Almost surely, 2^21113244341 is an apocalyptic number.

It is an amenable number.

21113244341 is a deficient number, since it is larger than the sum of its proper divisors (3425151499).

21113244341 is an equidigital number, since it uses as much as digits as its factorization.

21113244341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51121723.

The product of its digits is 2304, while the sum is 26.

Adding to 21113244341 its reverse (14344231112), we get a palindrome (35457475453).

The spelling of 21113244341 in words is "twenty-one billion, one hundred thirteen million, two hundred forty-four thousand, three hundred forty-one".