1121133199 has 4 divisors (see below), whose sum is σ = 1121221864. Its totient is φ = 1121044536.

The previous prime is 1121133103. The next prime is 1121133227. The reversal of 1121133199 is 9913311211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121133199 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 1121133199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121139199) 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, 21417 + ... + 51970.

It is an arithmetic number, because the mean of its divisors is an integer number (280305466).

Almost surely, 2^1121133199 is an apocalyptic number.

1121133199 is a deficient number, since it is larger than the sum of its proper divisors (88665).

1121133199 is an equidigital number, since it uses as much as digits as its factorization.

1121133199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88664.

The product of its digits is 1458, while the sum is 31.

The square root of 1121133199 is about 33483.3271793590. The cubic root of 1121133199 is about 1038.8489480933.

It can be divided in two parts, 112 and 1133199, that added together give a palindrome (1133311).

The spelling of 1121133199 in words is "one billion, one hundred twenty-one million, one hundred thirty-three thousand, one hundred ninety-nine".