1133133123 has 4 divisors (see below), whose sum is σ = 1510844168. Its totient is φ = 755422080.

The previous prime is 1133133121. The next prime is 1133133139. The reversal of 1133133123 is 3213313311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1133133123 - 2¹ = 1133133121 is a prime.

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 1133133123.

It is not an unprimeable number, because it can be changed into a prime (1133133121) 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, 188855518 + ... + 188855523.

It is an arithmetic number, because the mean of its divisors is an integer number (377711042).

Almost surely, 2^1133133123 is an apocalyptic number.

1133133123 is a deficient number, since it is larger than the sum of its proper divisors (377711045).

1133133123 is an equidigital number, since it uses as much as digits as its factorization.

1133133123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377711044.

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

The square root of 1133133123 is about 33662.0427633262. The cubic root of 1133133123 is about 1042.5422037213.

Adding to 1133133123 its reverse (3213313311), we get a palindrome (4346446434).

The spelling of 1133133123 in words is "one billion, one hundred thirty-three million, one hundred thirty-three thousand, one hundred twenty-three".