1123442013 has 8 divisors (see below), whose sum is σ = 1576760800. Its totient is φ = 709542288.

The previous prime is 1123442009. The next prime is 1123442029. The reversal of 1123442013 is 3102443211.

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

It is not a de Polignac number, because 1123442013 - 2² = 1123442009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123442003) 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, 9854698 + ... + 9854811.

It is an arithmetic number, because the mean of its divisors is an integer number (197095100).

Almost surely, 2^1123442013 is an apocalyptic number.

It is an amenable number.

1123442013 is a deficient number, since it is larger than the sum of its proper divisors (453318787).

1123442013 is a wasteful number, since it uses less digits than its factorization.

1123442013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19709531.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1123442013 is about 33517.7865170121. The cubic root of 1123442013 is about 1039.5615795677.

Adding to 1123442013 its reverse (3102443211), we get a palindrome (4225885224).

The spelling of 1123442013 in words is "one billion, one hundred twenty-three million, four hundred forty-two thousand, thirteen".