21333101307 has 16 divisors (see below), whose sum is σ = 33628535040. Its totient is φ = 11769986592.

The previous prime is 21333101297. The next prime is 21333101327. The reversal of 21333101307 is 70310133312.

It is not a de Polignac number, because 21333101307 - 2⁸ = 21333101051 is a prime.

It is a super-2 number, since 2×21333101307² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21333101327) 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, 17514253 + ... + 17515470.

It is an arithmetic number, because the mean of its divisors is an integer number (2101783440).

Almost surely, 2^21333101307 is an apocalyptic number.

21333101307 is a deficient number, since it is larger than the sum of its proper divisors (12295433733).

21333101307 is a wasteful number, since it uses less digits than its factorization.

21333101307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35029762.

The product of its (nonzero) digits is 1134, while the sum is 24.

Adding to 21333101307 its reverse (70310133312), we get a palindrome (91643234619).

The spelling of 21333101307 in words is "twenty-one billion, three hundred thirty-three million, one hundred one thousand, three hundred seven".