1143223342 has 4 divisors (see below), whose sum is σ = 1714835016. Its totient is φ = 571611670.

The previous prime is 1143223339. The next prime is 1143223351. The reversal of 1143223342 is 2433223411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2433223411 = 4951 ⋅491461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285805834 + ... + 285805837.

It is an arithmetic number, because the mean of its divisors is an integer number (428708754).

Almost surely, 2^1143223342 is an apocalyptic number.

1143223342 is a deficient number, since it is larger than the sum of its proper divisors (571611674).

1143223342 is an equidigital number, since it uses as much as digits as its factorization.

1143223342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571611673.

The product of its digits is 3456, while the sum is 25.

The square root of 1143223342 is about 33811.5859137072. The cubic root of 1143223342 is about 1045.6275747755.

Adding to 1143223342 its reverse (2433223411), we get a palindrome (3576446753).

The spelling of 1143223342 in words is "one billion, one hundred forty-three million, two hundred twenty-three thousand, three hundred forty-two".