142323211 has 4 divisors (see below), whose sum is σ = 142420032. Its totient is φ = 142226392.

The previous prime is 142323199. The next prime is 142323227. The reversal of 142323211 is 112323241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112323241 = 5639 ⋅19919.

It is a cyclic number.

It is not a de Polignac number, because 142323211 - 2¹¹ = 142321163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142323911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46171 + ... + 49156.

It is an arithmetic number, because the mean of its divisors is an integer number (35605008).

Almost surely, 2^142323211 is an apocalyptic number.

142323211 is a deficient number, since it is larger than the sum of its proper divisors (96821).

142323211 is an equidigital number, since it uses as much as digits as its factorization.

142323211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96820.

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

The square root of 142323211 is about 11929.9292118604. The cubic root of 142323211 is about 522.1058722049.

Adding to 142323211 its reverse (112323241), we get a palindrome (254646452).

The spelling of 142323211 in words is "one hundred forty-two million, three hundred twenty-three thousand, two hundred eleven".