21104133419 has 4 divisors (see below), whose sum is σ = 21158386080. Its totient is φ = 21049880760.

The previous prime is 21104133403. The next prime is 21104133451. The reversal of 21104133419 is 91433140112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21104133419 - 2⁴ = 21104133403 is a prime.

It is a super-2 number, since 2×21104133419² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21104133391 and 21104133400.

It is not an unprimeable number, because it can be changed into a prime (21104133119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27125747 + ... + 27126524.

It is an arithmetic number, because the mean of its divisors is an integer number (5289596520).

Almost surely, 2^21104133419 is an apocalyptic number.

21104133419 is a deficient number, since it is larger than the sum of its proper divisors (54252661).

21104133419 is an equidigital number, since it uses as much as digits as its factorization.

21104133419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54252660.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 21104133419 in words is "twenty-one billion, one hundred four million, one hundred thirty-three thousand, four hundred nineteen".