21300353115 has 64 divisors (see below), whose sum is σ = 37080944640. Its totient is φ = 10414010880.

The previous prime is 21300353101. The next prime is 21300353149. The reversal of 21300353115 is 51135300312.

It is not a de Polignac number, because 21300353115 - 2⁶ = 21300353051 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 699804 + ... + 729606.

It is an arithmetic number, because the mean of its divisors is an integer number (579389760).

Almost surely, 2^21300353115 is an apocalyptic number.

21300353115 is a deficient number, since it is larger than the sum of its proper divisors (15780591525).

21300353115 is a wasteful number, since it uses less digits than its factorization.

21300353115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29924.

The product of its (nonzero) digits is 1350, while the sum is 24.

Adding to 21300353115 its reverse (51135300312), we get a palindrome (72435653427).

The spelling of 21300353115 in words is "twenty-one billion, three hundred million, three hundred fifty-three thousand, one hundred fifteen".