1121124131 has 4 divisors (see below), whose sum is σ = 1148468664. Its totient is φ = 1093779600.

The previous prime is 1121124119. The next prime is 1121124181. The reversal of 1121124131 is 1314211211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121124131 is a prime.

It is a super-2 number, since 2×1121124131² = 2513838634221010322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121124101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13672205 + ... + 13672286.

It is an arithmetic number, because the mean of its divisors is an integer number (287117166).

Almost surely, 2^1121124131 is an apocalyptic number.

1121124131 is a deficient number, since it is larger than the sum of its proper divisors (27344533).

1121124131 is an equidigital number, since it uses as much as digits as its factorization.

1121124131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27344532.

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

The square root of 1121124131 is about 33483.1917684082. The cubic root of 1121124131 is about 1038.8461472641.

Adding to 1121124131 its reverse (1314211211), we get a palindrome (2435335342).

The spelling of 1121124131 in words is "one billion, one hundred twenty-one million, one hundred twenty-four thousand, one hundred thirty-one".