1123411331 has 4 divisors (see below), whose sum is σ = 1283898672. Its totient is φ = 962923992.

The previous prime is 1123411321. The next prime is 1123411349. The reversal of 1123411331 is 1331143211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1331143211 = 19 ⋅70060169.

It is a cyclic number.

It is not a de Polignac number, because 1123411331 - 2¹⁴ = 1123394947 is a prime.

It is a super-2 number, since 2×1123411331² = 2524106037238383122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123411301) 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, 80243660 + ... + 80243673.

It is an arithmetic number, because the mean of its divisors is an integer number (320974668).

Almost surely, 2^1123411331 is an apocalyptic number.

1123411331 is a deficient number, since it is larger than the sum of its proper divisors (160487341).

1123411331 is an equidigital number, since it uses as much as digits as its factorization.

1123411331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160487340.

The product of its digits is 216, while the sum is 20.

The square root of 1123411331 is about 33517.3288165987. The cubic root of 1123411331 is about 1039.5521157597.

Adding to 1123411331 its reverse (1331143211), we get a palindrome (2454554542).

The spelling of 1123411331 in words is "one billion, one hundred twenty-three million, four hundred eleven thousand, three hundred thirty-one".