1121124311 has 4 divisors (see below), whose sum is σ = 1159783800. Its totient is φ = 1082464824.

The previous prime is 1121124289. The next prime is 1121124349. The reversal of 1121124311 is 1134211211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121124311 - 2¹⁰ = 1121123287 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 1121124311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121124391) 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, 19329701 + ... + 19329758.

It is an arithmetic number, because the mean of its divisors is an integer number (289945950).

Almost surely, 2^1121124311 is an apocalyptic number.

1121124311 is a deficient number, since it is larger than the sum of its proper divisors (38659489).

1121124311 is an equidigital number, since it uses as much as digits as its factorization.

1121124311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38659488.

The product of its digits is 48, while the sum is 17.

The square root of 1121124311 is about 33483.1944563239. The cubic root of 1121124311 is about 1038.8462028608.

Adding to 1121124311 its reverse (1134211211), we get a palindrome (2255335522).

The spelling of 1121124311 in words is "one billion, one hundred twenty-one million, one hundred twenty-four thousand, three hundred eleven".