21113354364519 has 8 divisors (see below), whose sum is σ = 28170433976320. Its totient is φ = 14065922164536.

The previous prime is 21113354364499. The next prime is 21113354364523. The reversal of 21113354364519 is 91546345331112.

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

It is not a de Polignac number, because 21113354364519 - 2⁷ = 21113354364391 is a prime.

It is a super-2 number, since 2×21113354364519² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113354364559) 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, 2411847847 + ... + 2411856600.

It is an arithmetic number, because the mean of its divisors is an integer number (3521304247040).

Almost surely, 2^{21113354364519} is an apocalyptic number.

21113354364519 is a deficient number, since it is larger than the sum of its proper divisors (7057079611801).

21113354364519 is a wasteful number, since it uses less digits than its factorization.

21113354364519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4823705909.

The product of its digits is 1166400, while the sum is 48.

The spelling of 21113354364519 in words is "twenty-one trillion, one hundred thirteen billion, three hundred fifty-four million, three hundred sixty-four thousand, five hundred nineteen".