1123430042 has 16 divisors (see below), whose sum is σ = 1937416320. Its totient is φ = 478585968.

The previous prime is 1123430039. The next prime is 1123430059. The reversal of 1123430042 is 2400343211.

It is a junction number, because it is equal to n+sod(n) for n = 1123429996 and 1123430023.

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, 237917 + ... + 242592.

It is an arithmetic number, because the mean of its divisors is an integer number (121088520).

Almost surely, 2^1123430042 is an apocalyptic number.

1123430042 is a deficient number, since it is larger than the sum of its proper divisors (813986278).

1123430042 is a wasteful number, since it uses less digits than its factorization.

1123430042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480685.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1123430042 is about 33517.6079397083. The cubic root of 1123430042 is about 1039.5578871547.

Adding to 1123430042 its reverse (2400343211), we get a palindrome (3523773253).

The spelling of 1123430042 in words is "one billion, one hundred twenty-three million, four hundred thirty thousand, forty-two".