1223130142 has 16 divisors (see below), whose sum is σ = 1991388672. Its totient is φ = 560075040.

The previous prime is 1223130089. The next prime is 1223130151. The reversal of 1223130142 is 2410313221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181909 + ... + 188512.

It is an arithmetic number, because the mean of its divisors is an integer number (124461792).

Almost surely, 2^1223130142 is an apocalyptic number.

1223130142 is a deficient number, since it is larger than the sum of its proper divisors (768258530).

1223130142 is a wasteful number, since it uses less digits than its factorization.

1223130142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370563.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1223130142 is about 34973.2775415745. The cubic root of 1223130142 is about 1069.4427884581.

Adding to 1223130142 its reverse (2410313221), we get a palindrome (3633443363).

The spelling of 1223130142 in words is "one billion, two hundred twenty-three million, one hundred thirty thousand, one hundred forty-two".