13113221333 has 4 divisors (see below), whose sum is σ = 13116488160. Its totient is φ = 13109954508.

The previous prime is 13113221267. The next prime is 13113221411. The reversal of 13113221333 is 33312231131.

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 13113221333 - 2¹² = 13113217237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13113221299 and 13113221308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113211333) 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, 1627385 + ... + 1635422.

It is an arithmetic number, because the mean of its divisors is an integer number (3279122040).

Almost surely, 2^13113221333 is an apocalyptic number.

It is an amenable number.

13113221333 is a deficient number, since it is larger than the sum of its proper divisors (3266827).

13113221333 is an equidigital number, since it uses as much as digits as its factorization.

13113221333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266826.

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

Adding to 13113221333 its reverse (33312231131), we get a palindrome (46425452464).

The spelling of 13113221333 in words is "thirteen billion, one hundred thirteen million, two hundred twenty-one thousand, three hundred thirty-three".