1131223333 has 16 divisors (see below), whose sum is σ = 1244315520. Its totient is φ = 1024038400.

The previous prime is 1131223321. The next prime is 1131223363. The reversal of 1131223333 is 3333221311.

It is a cyclic number.

It is not a de Polignac number, because 1131223333 - 2⁹ = 1131222821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131223363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38058 + ... + 60916.

It is an arithmetic number, because the mean of its divisors is an integer number (77769720).

Almost surely, 2^1131223333 is an apocalyptic number.

It is an amenable number.

1131223333 is a deficient number, since it is larger than the sum of its proper divisors (113092187).

1131223333 is a wasteful number, since it uses less digits than its factorization.

1131223333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22988.

The product of its digits is 972, while the sum is 22.

The square root of 1131223333 is about 33633.6636868480. The cubic root of 1131223333 is about 1041.9561718739.

Adding to 1131223333 its reverse (3333221311), we get a palindrome (4464444644).

The spelling of 1131223333 in words is "one billion, one hundred thirty-one million, two hundred twenty-three thousand, three hundred thirty-three".