1111320231233 has 4 divisors (see below), whose sum is σ = 1126972628928. Its totient is φ = 1095667833540.

The previous prime is 1111320231223. The next prime is 1111320231247. The reversal of 1111320231233 is 3321320231111.

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 a de Polignac number, because none of the positive numbers 2^k-1111320231233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111320231199 and 1111320231208.

It is not an unprimeable number, because it can be changed into a prime (1111320231223) 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, 7826198741 + ... + 7826198882.

It is an arithmetic number, because the mean of its divisors is an integer number (281743157232).

Almost surely, 2^{1111320231233} is an apocalyptic number.

It is an amenable number.

1111320231233 is a deficient number, since it is larger than the sum of its proper divisors (15652397695).

1111320231233 is an equidigital number, since it uses as much as digits as its factorization.

1111320231233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15652397694.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1111320231233 its reverse (3321320231111), we get a palindrome (4432640462344).

The spelling of 1111320231233 in words is "one trillion, one hundred eleven billion, three hundred twenty million, two hundred thirty-one thousand, two hundred thirty-three".