21119361 has 8 divisors (see below), whose sum is σ = 28408800. Its totient is φ = 13954752.

The previous prime is 21119333. The next prime is 21119363. The reversal of 21119361 is 16391112.

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

It is not a de Polignac number, because 21119361 - 2⁶ = 21119297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21119363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30811 + ... + 31488.

It is an arithmetic number, because the mean of its divisors is an integer number (3551100).

Almost surely, 2^21119361 is an apocalyptic number.

It is an amenable number.

21119361 is a deficient number, since it is larger than the sum of its proper divisors (7289439).

21119361 is a wasteful number, since it uses less digits than its factorization.

21119361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62415.

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

The square root of 21119361 is about 4595.5805944407. The cubic root of 21119361 is about 276.4141414448.

The spelling of 21119361 in words is "twenty-one million, one hundred nineteen thousand, three hundred sixty-one".