1131223321133 has 4 divisors (see below), whose sum is σ = 1131225792060. Its totient is φ = 1131220850208.

The previous prime is 1131223321121. The next prime is 1131223321139. The reversal of 1131223321133 is 3311233221311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1124910541924 + 6312779209 = 1060618^2 + 79453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131223321133 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 (1131223321139) 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, 325178 + ... + 1538891.

It is an arithmetic number, because the mean of its divisors is an integer number (282806448015).

Almost surely, 2^{1131223321133} is an apocalyptic number.

It is an amenable number.

1131223321133 is a deficient number, since it is larger than the sum of its proper divisors (2470927).

1131223321133 is an equidigital number, since it uses as much as digits as its factorization.

1131223321133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470926.

The product of its digits is 1944, while the sum is 26.

Adding to 1131223321133 its reverse (3311233221311), we get a palindrome (4442456542444).

The spelling of 1131223321133 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-three million, three hundred twenty-one thousand, one hundred thirty-three".