21233213113 has 8 divisors (see below), whose sum is σ = 24297928128. Its totient is φ = 18176347824.

The previous prime is 21233213107. The next prime is 21233213153. The reversal of 21233213113 is 31131233212.

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

It is a cyclic number.

It is not a de Polignac number, because 21233213113 - 2⁵ = 21233213081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21233213153) 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 7 ways as a sum of consecutive naturals, for example, 1956631 + ... + 1967452.

It is an arithmetic number, because the mean of its divisors is an integer number (3037241016).

Almost surely, 2^21233213113 is an apocalyptic number.

It is an amenable number.

21233213113 is a deficient number, since it is larger than the sum of its proper divisors (3064715015).

21233213113 is an equidigital number, since it uses as much as digits as its factorization.

21233213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924863.

The product of its digits is 648, while the sum is 22.

Adding to 21233213113 its reverse (31131233212), we get a palindrome (52364446325).

The spelling of 21233213113 in words is "twenty-one billion, two hundred thirty-three million, two hundred thirteen thousand, one hundred thirteen".