21076113 has 8 divisors (see below), whose sum is σ = 28122976. Its totient is φ = 14040000.

The previous prime is 21076093. The next prime is 21076129. The reversal of 21076113 is 31167012.

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

It is not a de Polignac number, because 21076113 - 2⁹ = 21075601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21076113.

It is not an unprimeable number, because it can be changed into a prime (21076213) 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, 5193 + ... + 8313.

It is an arithmetic number, because the mean of its divisors is an integer number (3515372).

Almost surely, 2^21076113 is an apocalyptic number.

It is an amenable number.

21076113 is a deficient number, since it is larger than the sum of its proper divisors (7046863).

21076113 is a wasteful number, since it uses less digits than its factorization.

21076113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5375.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 21076113 is about 4590.8727928358. The cubic root of 21076113 is about 276.2253332056.

The spelling of 21076113 in words is "twenty-one million, seventy-six thousand, one hundred thirteen".