1121011133 has 4 divisors (see below), whose sum is σ = 1222921248. Its totient is φ = 1019101020.

The previous prime is 1121011123. The next prime is 1121011169. The reversal of 1121011133 is 3311101211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3311101211 = 11 ⋅301009201.

It is a cyclic number.

It is not a de Polignac number, because 1121011133 - 2⁶ = 1121011069 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 (1121011123) 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, 50955041 + ... + 50955062.

It is an arithmetic number, because the mean of its divisors is an integer number (305730312).

Almost surely, 2^1121011133 is an apocalyptic number.

It is an amenable number.

1121011133 is a deficient number, since it is larger than the sum of its proper divisors (101910115).

1121011133 is a wasteful number, since it uses less digits than its factorization.

1121011133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101910114.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1121011133 is about 33481.5043419498. The cubic root of 1121011133 is about 1038.8112443550.

Adding to 1121011133 its reverse (3311101211), we get a palindrome (4432112344).

The spelling of 1121011133 in words is "one billion, one hundred twenty-one million, eleven thousand, one hundred thirty-three".