11231231333 has 4 divisors (see below), whose sum is σ = 12835692960. Its totient is φ = 9626769708.

The previous prime is 11231231321. The next prime is 11231231359. The reversal of 11231231333 is 33313213211.

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 11231231333 - 2⁴ = 11231231317 is a prime.

It is a super-2 number, since 2×11231231333² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11231231299 and 11231231308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231231633) 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, 802230803 + ... + 802230816.

It is an arithmetic number, because the mean of its divisors is an integer number (3208923240).

Almost surely, 2^11231231333 is an apocalyptic number.

It is an amenable number.

11231231333 is a deficient number, since it is larger than the sum of its proper divisors (1604461627).

11231231333 is an equidigital number, since it uses as much as digits as its factorization.

11231231333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604461626.

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

Adding to 11231231333 its reverse (33313213211), we get a palindrome (44544444544).

The spelling of 11231231333 in words is "eleven billion, two hundred thirty-one million, two hundred thirty-one thousand, three hundred thirty-three".