1142223423 has 24 divisors (see below), whose sum is σ = 1678513200. Its totient is φ = 690391680.

The previous prime is 1142223409. The next prime is 1142223451. The reversal of 1142223423 is 3243222411.

It is a happy number.

It is not a de Polignac number, because 1142223423 - 2⁸ = 1142223167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142223393 and 1142223402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142223463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137163 + ... + 145251.

It is an arithmetic number, because the mean of its divisors is an integer number (69938050).

Almost surely, 2^1142223423 is an apocalyptic number.

1142223423 is a deficient number, since it is larger than the sum of its proper divisors (536289777).

1142223423 is a wasteful number, since it uses less digits than its factorization.

1142223423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8503 (or 8492 counting only the distinct ones).

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

The square root of 1142223423 is about 33796.7960463710. The cubic root of 1142223423 is about 1045.3226335285.

Adding to 1142223423 its reverse (3243222411), we get a palindrome (4385445834).

The spelling of 1142223423 in words is "one billion, one hundred forty-two million, two hundred twenty-three thousand, four hundred twenty-three".