21119329 has 8 divisors (see below), whose sum is σ = 26330688. Its totient is φ = 16456560.

The previous prime is 21119327. The next prime is 21119333. The reversal of 21119329 is 92391112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21119329 - 2¹ = 21119327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21119297 and 21119306.

It is not an unprimeable number, because it can be changed into a prime (21119327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137062 + ... + 137215.

It is an arithmetic number, because the mean of its divisors is an integer number (3291336).

Almost surely, 2^21119329 is an apocalyptic number.

It is an amenable number.

21119329 is a deficient number, since it is larger than the sum of its proper divisors (5211359).

21119329 is a wasteful number, since it uses less digits than its factorization.

21119329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274295.

The product of its digits is 972, while the sum is 28.

The square root of 21119329 is about 4595.5771128336. The cubic root of 21119329 is about 276.4140018374.

The spelling of 21119329 in words is "twenty-one million, one hundred nineteen thousand, three hundred twenty-nine".