1123043442 has 16 divisors (see below), whose sum is σ = 2268326592. Its totient is φ = 370641200.

The previous prime is 1123043419. The next prime is 1123043497. The reversal of 1123043442 is 2443403211.

It is a super-2 number, since 2×1123043442² = 2522453145238414728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925998 + ... + 927209.

It is an arithmetic number, because the mean of its divisors is an integer number (141770412).

Almost surely, 2^1123043442 is an apocalyptic number.

1123043442 is an abundant number, since it is smaller than the sum of its proper divisors (1145283150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123043442 is a wasteful number, since it uses less digits than its factorization.

1123043442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853313.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1123043442 is about 33511.8403254730. The cubic root of 1123043442 is about 1039.4386276330.

Adding to 1123043442 its reverse (2443403211), we get a palindrome (3566446653).

The spelling of 1123043442 in words is "one billion, one hundred twenty-three million, forty-three thousand, four hundred forty-two".