11312213233 has 4 divisors (see below), whose sum is σ = 11417934960. Its totient is φ = 11206491508.

The previous prime is 11312213197. The next prime is 11312213243. The reversal of 11312213233 is 33231221311.

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 11312213233 - 2¹⁷ = 11312082161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312213243) 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, 52860703 + ... + 52860916.

It is an arithmetic number, because the mean of its divisors is an integer number (2854483740).

Almost surely, 2^11312213233 is an apocalyptic number.

It is an amenable number.

11312213233 is a deficient number, since it is larger than the sum of its proper divisors (105721727).

11312213233 is a wasteful number, since it uses less digits than its factorization.

11312213233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105721726.

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

Adding to 11312213233 its reverse (33231221311), we get a palindrome (44543434544).

The spelling of 11312213233 in words is "eleven billion, three hundred twelve million, two hundred thirteen thousand, two hundred thirty-three".