21113119 has 2 divisors, whose sum is σ = 21113120. Its totient is φ = 21113118.

The previous prime is 21113111. The next prime is 21113153. The reversal of 21113119 is 91131112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21113119 - 2³ = 21113111 is a prime.

It is a super-2 number, since 2×21113119² = 891527587816322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 21113096 and 21113105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21113111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556559 + 10556560.

It is an arithmetic number, because the mean of its divisors is an integer number (10556560).

Almost surely, 2^21113119 is an apocalyptic number.

21113119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21113119 is an equidigital number, since it uses as much as digits as its factorization.

21113119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54, while the sum is 19.

The square root of 21113119 is about 4594.9014135235. The cubic root of 21113119 is about 276.3869066075.

The spelling of 21113119 in words is "twenty-one million, one hundred thirteen thousand, one hundred nineteen".