21119042 has 16 divisors (see below), whose sum is σ = 36277440. Its totient is φ = 9032688.

The previous prime is 21119039. The next prime is 21119053. The reversal of 21119042 is 24091112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7448 + ... + 9884.

It is an arithmetic number, because the mean of its divisors is an integer number (2267340).

Almost surely, 2^21119042 is an apocalyptic number.

21119042 is a deficient number, since it is larger than the sum of its proper divisors (15158398).

21119042 is a wasteful number, since it uses less digits than its factorization.

21119042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 21119042 is about 4595.5458870519. The cubic root of 21119042 is about 276.4127497272.

The spelling of 21119042 in words is "twenty-one million, one hundred nineteen thousand, forty-two".