1223142342 has 8 divisors (see below), whose sum is σ = 2446284696. Its totient is φ = 407714112.

The previous prime is 1223142331. The next prime is 1223142343. The reversal of 1223142342 is 2432413221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1223142342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223142343) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 101928523 + ... + 101928534.

It is an arithmetic number, because the mean of its divisors is an integer number (305785587).

Almost surely, 2^1223142342 is an apocalyptic number.

1223142342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1223142342 is a wasteful number, since it uses less digits than its factorization.

1223142342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203857062.

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

The square root of 1223142342 is about 34973.4519600225. The cubic root of 1223142342 is about 1069.4463441328.

Adding to 1223142342 its reverse (2432413221), we get a palindrome (3655555563).

The spelling of 1223142342 in words is "one billion, two hundred twenty-three million, one hundred forty-two thousand, three hundred forty-two".