11131233233 has 4 divisors (see below), whose sum is σ = 11131468608. Its totient is φ = 11130997860.

The previous prime is 11131233221. The next prime is 11131233283. The reversal of 11131233233 is 33233213111.

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 11131233233 - 2²⁰ = 11130184657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11131233199 and 11131233208.

It is not an unprimeable number, because it can be changed into a prime (11131233283) 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, 19373 + ... + 150458.

It is an arithmetic number, because the mean of its divisors is an integer number (2782867152).

Almost surely, 2^11131233233 is an apocalyptic number.

It is an amenable number.

11131233233 is a deficient number, since it is larger than the sum of its proper divisors (235375).

11131233233 is an equidigital number, since it uses as much as digits as its factorization.

11131233233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235374.

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

Adding to 11131233233 its reverse (33233213111), we get a palindrome (44364446344).

The spelling of 11131233233 in words is "eleven billion, one hundred thirty-one million, two hundred thirty-three thousand, two hundred thirty-three".