21113242341 has 8 divisors (see below), whose sum is σ = 28157691744. Its totient is φ = 14072143920.

The previous prime is 21113242333. The next prime is 21113242351. The reversal of 21113242341 is 14324231112.

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

It is not a de Polignac number, because 21113242341 - 2³ = 21113242333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113242351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823006 + ... + 848271.

It is an arithmetic number, because the mean of its divisors is an integer number (3519711468).

Almost surely, 2^21113242341 is an apocalyptic number.

It is an amenable number.

21113242341 is a deficient number, since it is larger than the sum of its proper divisors (7044449403).

21113242341 is a wasteful number, since it uses less digits than its factorization.

21113242341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675491.

The product of its digits is 1152, while the sum is 24.

Adding to 21113242341 its reverse (14324231112), we get a palindrome (35437473453).

The spelling of 21113242341 in words is "twenty-one billion, one hundred thirteen million, two hundred forty-two thousand, three hundred forty-one".