1223234142 has 32 divisors (see below), whose sum is σ = 2673992832. Its totient is φ = 370760544.

The previous prime is 1223234137. The next prime is 1223234143. The reversal of 1223234142 is 2414323221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223234143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111808 + ... + 122259.

It is an arithmetic number, because the mean of its divisors is an integer number (83562276).

Almost surely, 2^1223234142 is an apocalyptic number.

1223234142 is an abundant number, since it is smaller than the sum of its proper divisors (1450758690).

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

1223234142 is a wasteful number, since it uses less digits than its factorization.

1223234142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234152.

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

The square root of 1223234142 is about 34974.7643594635. The cubic root of 1223234142 is about 1069.4730983693.

Adding to 1223234142 its reverse (2414323221), we get a palindrome (3637557363).

The spelling of 1223234142 in words is "one billion, two hundred twenty-three million, two hundred thirty-four thousand, one hundred forty-two".