1123422142 has 4 divisors (see below), whose sum is σ = 1685133216. Its totient is φ = 561711070.

The previous prime is 1123422089. The next prime is 1123422151. The reversal of 1123422142 is 2412243211.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280855534 + ... + 280855537.

It is an arithmetic number, because the mean of its divisors is an integer number (421283304).

Almost surely, 2^1123422142 is an apocalyptic number.

1123422142 is a deficient number, since it is larger than the sum of its proper divisors (561711074).

1123422142 is an equidigital number, since it uses as much as digits as its factorization.

1123422142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561711073.

The product of its digits is 768, while the sum is 22.

The square root of 1123422142 is about 33517.4900909958. The cubic root of 1123422142 is about 1039.5554504129. Note that the first 3 decimals are identical.

Adding to 1123422142 its reverse (2412243211), we get a palindrome (3535665353).

The spelling of 1123422142 in words is "one billion, one hundred twenty-three million, four hundred twenty-two thousand, one hundred forty-two".