1123241311 has 4 divisors (see below), whose sum is σ = 1161973800. Its totient is φ = 1084508824.

The previous prime is 1123241309. The next prime is 1123241341. The reversal of 1123241311 is 1131423211.

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

It is not a de Polignac number, because 1123241311 - 2¹ = 1123241309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123241341) 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, 19366201 + ... + 19366258.

It is an arithmetic number, because the mean of its divisors is an integer number (290493450).

Almost surely, 2^1123241311 is an apocalyptic number.

1123241311 is a deficient number, since it is larger than the sum of its proper divisors (38732489).

1123241311 is an equidigital number, since it uses as much as digits as its factorization.

1123241311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38732488.

The product of its digits is 144, while the sum is 19.

The square root of 1123241311 is about 33514.7924206611. The cubic root of 1123241311 is about 1039.4996702713.

Adding to 1123241311 its reverse (1131423211), we get a palindrome (2254664522).

It can be divided in two parts, 112 and 3241311, that added together give a palindrome (3241423).

The spelling of 1123241311 in words is "one billion, one hundred twenty-three million, two hundred forty-one thousand, three hundred eleven".