13122231233 has 4 divisors (see below), whose sum is σ = 13126346688. Its totient is φ = 13118115780.

The previous prime is 13122231229. The next prime is 13122231251. The reversal of 13122231233 is 33213222131.

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 13122231233 - 2² = 13122231229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13122231199 and 13122231208.

It is not an unprimeable number, because it can be changed into a prime (13122231533) 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, 2052941 + ... + 2059322.

It is an arithmetic number, because the mean of its divisors is an integer number (3281586672).

Almost surely, 2^13122231233 is an apocalyptic number.

It is an amenable number.

13122231233 is a deficient number, since it is larger than the sum of its proper divisors (4115455).

13122231233 is an equidigital number, since it uses as much as digits as its factorization.

13122231233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115454.

The product of its digits is 1296, while the sum is 23.

Adding to 13122231233 its reverse (33213222131), we get a palindrome (46335453364).

The spelling of 13122231233 in words is "thirteen billion, one hundred twenty-two million, two hundred thirty-one thousand, two hundred thirty-three".