1123442231 has 8 divisors (see below), whose sum is σ = 1132203984. Its totient is φ = 1114701120.

The previous prime is 1123442213. The next prime is 1123442237. The reversal of 1123442231 is 1322443211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123442231 - 2¹⁴ = 1123425847 is a prime.

It is a super-2 number, since 2×1123442231² = 2524244892788514722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123442197 and 1123442206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123442237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114776 + ... + 124178.

It is an arithmetic number, because the mean of its divisors is an integer number (141525498).

Almost surely, 2^1123442231 is an apocalyptic number.

1123442231 is a deficient number, since it is larger than the sum of its proper divisors (8761753).

1123442231 is an equidigital number, since it uses as much as digits as its factorization.

1123442231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10321.

The product of its digits is 1152, while the sum is 23.

The square root of 1123442231 is about 33517.7897690167. The cubic root of 1123442231 is about 1039.5616468088.

Adding to 1123442231 its reverse (1322443211), we get a palindrome (2445885442).

The spelling of 1123442231 in words is "one billion, one hundred twenty-three million, four hundred forty-two thousand, two hundred thirty-one".