21316119 has 16 divisors (see below), whose sum is σ = 32638080. Its totient is φ = 12238560.

The previous prime is 21316109. The next prime is 21316133. The reversal of 21316119 is 91161312.

It is not a de Polignac number, because 21316119 - 2⁹ = 21315607 is a prime.

It is a super-2 number, since 2×21316119² = 908753858444322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21316109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16372 + ... + 17625.

It is an arithmetic number, because the mean of its divisors is an integer number (2039880).

Almost surely, 2^21316119 is an apocalyptic number.

21316119 is a deficient number, since it is larger than the sum of its proper divisors (11321961).

21316119 is a wasteful number, since it uses less digits than its factorization.

21316119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34030.

The product of its digits is 324, while the sum is 24.

The square root of 21316119 is about 4616.9382711923. The cubic root of 21316119 is about 277.2698912156.

The spelling of 21316119 in words is "twenty-one million, three hundred sixteen thousand, one hundred nineteen".