142011223 has 8 divisors (see below), whose sum is σ = 148425696. Its totient is φ = 135616800.

The previous prime is 142011209. The next prime is 142011227. The reversal of 142011223 is 322110241.

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

It is a cyclic number.

It is not a de Polignac number, because 142011223 - 2⁹ = 142010711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142011197 and 142011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142011227) 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 7 ways as a sum of consecutive naturals, for example, 10533 + ... + 19873.

It is an arithmetic number, because the mean of its divisors is an integer number (18553212).

Almost surely, 2^142011223 is an apocalyptic number.

142011223 is a deficient number, since it is larger than the sum of its proper divisors (6414473).

142011223 is an equidigital number, since it uses as much as digits as its factorization.

142011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10025.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 142011223 is about 11916.8461851280. The cubic root of 142011223 is about 521.7240887613.

Adding to 142011223 its reverse (322110241), we get a palindrome (464121464).

The spelling of 142011223 in words is "one hundred forty-two million, eleven thousand, two hundred twenty-three".