1131033133 has 4 divisors (see below), whose sum is σ = 1132750080. Its totient is φ = 1129316188.

The previous prime is 1131033107. The next prime is 1131033139. The reversal of 1131033133 is 3313301311.

It is a happy number.

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 1131033133 - 2²¹ = 1128935981 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 1131033133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131033139) 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, 857485 + ... + 858802.

It is an arithmetic number, because the mean of its divisors is an integer number (283187520).

Almost surely, 2^1131033133 is an apocalyptic number.

It is an amenable number.

1131033133 is a deficient number, since it is larger than the sum of its proper divisors (1716947).

1131033133 is an equidigital number, since it uses as much as digits as its factorization.

1131033133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716946.

The product of its (nonzero) digits is 243, while the sum is 19.

The square root of 1131033133 is about 33630.8360437263. The cubic root of 1131033133 is about 1041.8977716251.

Adding to 1131033133 its reverse (3313301311), we get a palindrome (4444334444).

The spelling of 1131033133 in words is "one billion, one hundred thirty-one million, thirty-three thousand, one hundred thirty-three".