21340119 has 4 divisors (see below), whose sum is σ = 28453496. Its totient is φ = 14226744.

The previous prime is 21340093. The next prime is 21340141. The reversal of 21340119 is 91104312.

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

It is not a de Polignac number, because 21340119 - 2⁷ = 21339991 is a prime.

It is a super-2 number, since 2×21340119² = 910801357868322, 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 = 21340095 and 21340104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21340019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3556684 + ... + 3556689.

It is an arithmetic number, because the mean of its divisors is an integer number (7113374).

Almost surely, 2^21340119 is an apocalyptic number.

21340119 is a deficient number, since it is larger than the sum of its proper divisors (7113377).

21340119 is an equidigital number, since it uses as much as digits as its factorization.

21340119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7113376.

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

The square root of 21340119 is about 4619.5366650780. The cubic root of 21340119 is about 277.3739123636.

The spelling of 21340119 in words is "twenty-one million, three hundred forty thousand, one hundred nineteen".