21313413212233 has 4 divisors (see below), whose sum is σ = 21313839334528. Its totient is φ = 21312987089940.

The previous prime is 21313413212227. The next prime is 21313413212243. The reversal of 21313413212233 is 33221231431312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21313413212233 - 2⁹ = 21313413211721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21313413212195 and 21313413212204.

It is not an unprimeable number, because it can be changed into a prime (21313413212243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212986113 + ... + 213086158.

It is an arithmetic number, because the mean of its divisors is an integer number (5328459833632).

Almost surely, 2^{21313413212233} is an apocalyptic number.

It is an amenable number.

21313413212233 is a deficient number, since it is larger than the sum of its proper divisors (426122295).

21313413212233 is an equidigital number, since it uses as much as digits as its factorization.

21313413212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426122294.

The product of its digits is 15552, while the sum is 31.

Adding to 21313413212233 its reverse (33221231431312), we get a palindrome (54534644643545).

The spelling of 21313413212233 in words is "twenty-one trillion, three hundred thirteen billion, four hundred thirteen million, two hundred twelve thousand, two hundred thirty-three".