20411319 has 4 divisors (see below), whose sum is σ = 27215096. Its totient is φ = 13607544.

The previous prime is 20411291. The next prime is 20411323. The reversal of 20411319 is 91311402.

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

It is a de Polignac number, because none of the positive numbers 2^k-20411319 is a prime.

It is a super-2 number, since 2×20411319² = 833243886639522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20411295 and 20411304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411329) 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 3 ways as a sum of consecutive naturals, for example, 3401884 + ... + 3401889.

It is an arithmetic number, because the mean of its divisors is an integer number (6803774).

Almost surely, 2^20411319 is an apocalyptic number.

20411319 is a deficient number, since it is larger than the sum of its proper divisors (6803777).

20411319 is an equidigital number, since it uses as much as digits as its factorization.

20411319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6803776.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 20411319 is about 4517.8887768514. Note that the first 3 decimals coincide. The cubic root of 20411319 is about 273.2899681683.

The spelling of 20411319 in words is "twenty million, four hundred eleven thousand, three hundred nineteen".