21013300311 has 8 divisors (see below), whose sum is σ = 28150520064. Its totient is φ = 13942473720.

The previous prime is 21013300271. The next prime is 21013300333. The reversal of 21013300311 is 11300331012.

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

It is not a de Polignac number, because 21013300311 - 2⁶ = 21013300247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21013300351) 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, 16597551 + ... + 16598816.

It is an arithmetic number, because the mean of its divisors is an integer number (3518815008).

Almost surely, 2^21013300311 is an apocalyptic number.

21013300311 is a deficient number, since it is larger than the sum of its proper divisors (7137219753).

21013300311 is a wasteful number, since it uses less digits than its factorization.

21013300311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33196581.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21013300311 its reverse (11300331012), we get a palindrome (32313631323).

The spelling of 21013300311 in words is "twenty-one billion, thirteen million, three hundred thousand, three hundred eleven".