21333132113 has 16 divisors (see below), whose sum is σ = 22835712000. Its totient is φ = 19870682832.

The previous prime is 21333132103. The next prime is 21333132127. The reversal of 21333132113 is 31123133312.

It is a cyclic number.

It is not a de Polignac number, because 21333132113 - 2⁶ = 21333132049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21333132103) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 329006 + ... + 388472.

It is an arithmetic number, because the mean of its divisors is an integer number (1427232000).

Almost surely, 2^21333132113 is an apocalyptic number.

It is an amenable number.

21333132113 is a deficient number, since it is larger than the sum of its proper divisors (1502579887).

21333132113 is a wasteful number, since it uses less digits than its factorization.

21333132113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59804.

The product of its digits is 972, while the sum is 23.

Adding to 21333132113 its reverse (31123133312), we get a palindrome (52456265425).

The spelling of 21333132113 in words is "twenty-one billion, three hundred thirty-three million, one hundred thirty-two thousand, one hundred thirteen".