1123311441 has 16 divisors (see below), whose sum is σ = 1712193408. Its totient is φ = 641712000.

The previous prime is 1123311437. The next prime is 1123311463. The reversal of 1123311441 is 1441133211.

It is not a de Polignac number, because 1123311441 - 2² = 1123311437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1123311641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117211 + ... + 126431.

It is an arithmetic number, because the mean of its divisors is an integer number (107012088).

Almost surely, 2^1123311441 is an apocalyptic number.

It is an amenable number.

1123311441 is a deficient number, since it is larger than the sum of its proper divisors (588881967).

1123311441 is an equidigital number, since it uses as much as digits as its factorization.

1123311441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15032.

The product of its digits is 288, while the sum is 21.

The square root of 1123311441 is about 33515.8386587595. The cubic root of 1123311441 is about 1039.5213036739.

Adding to 1123311441 its reverse (1441133211), we get a palindrome (2564444652).

The spelling of 1123311441 in words is "one billion, one hundred twenty-three million, three hundred eleven thousand, four hundred forty-one".