142312123 has 2 divisors, whose sum is σ = 142312124. Its totient is φ = 142312122.

The previous prime is 142312111. The next prime is 142312129. The reversal of 142312123 is 321213241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142312123 - 2⁵ = 142312091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142312123.

It is not a weakly prime, because it can be changed into another prime (142312129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71156061 + 71156062.

It is an arithmetic number, because the mean of its divisors is an integer number (71156062).

Almost surely, 2^142312123 is an apocalyptic number.

142312123 is a deficient number, since it is larger than the sum of its proper divisors (1).

142312123 is an equidigital number, since it uses as much as digits as its factorization.

142312123 is an odious number, because the sum of its binary digits is odd.

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

The square root of 142312123 is about 11929.4644892384. The cubic root of 142312123 is about 522.0923132541.

Adding to 142312123 its reverse (321213241), we get a palindrome (463525364).

The spelling of 142312123 in words is "one hundred forty-two million, three hundred twelve thousand, one hundred twenty-three".