1131233313 has 8 divisors (see below), whose sum is σ = 1723784128. Its totient is φ = 646419024.

The previous prime is 1131233269. The next prime is 1131233351. The reversal of 1131233313 is 3133321311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131233313 - 2²² = 1127039009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 53868253 = 1131233313 / (1 + 1 + 3 + 1 + 2 + 3 + 3 + 3 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131233313.

It is not an unprimeable number, because it can be changed into a prime (1131233393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26934106 + ... + 26934147.

It is an arithmetic number, because the mean of its divisors is an integer number (215473016).

Almost surely, 2^1131233313 is an apocalyptic number.

It is an amenable number.

1131233313 is a deficient number, since it is larger than the sum of its proper divisors (592550815).

1131233313 is an equidigital number, since it uses as much as digits as its factorization.

1131233313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53868263.

The product of its digits is 486, while the sum is 21.

The square root of 1131233313 is about 33633.8120497811. The cubic root of 1131233313 is about 1041.9592360174.

Adding to 1131233313 its reverse (3133321311), we get a palindrome (4264554624).

The spelling of 1131233313 in words is "one billion, one hundred thirty-one million, two hundred thirty-three thousand, three hundred thirteen".