21300448983 has 16 divisors (see below), whose sum is σ = 31444899456. Its totient is φ = 12716684640.

The previous prime is 21300448973. The next prime is 21300448991. The reversal of 21300448983 is 38984400312.

It is not a de Polignac number, because 21300448983 - 2⁶ = 21300448919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300448973) 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, 4814716 + ... + 4819137.

It is an arithmetic number, because the mean of its divisors is an integer number (1965306216).

Almost surely, 2^21300448983 is an apocalyptic number.

21300448983 is a deficient number, since it is larger than the sum of its proper divisors (10144450473).

21300448983 is a wasteful number, since it uses less digits than its factorization.

21300448983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9633934.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 21300448983 in words is "twenty-one billion, three hundred million, four hundred forty-eight thousand, nine hundred eighty-three".