142323911 has 2 divisors, whose sum is σ = 142323912. Its totient is φ = 142323910.

The previous prime is 142323899. The next prime is 142323953. The reversal of 142323911 is 119323241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142323911 - 2¹⁸ = 142061767 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142373911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71161955 + 71161956.

It is an arithmetic number, because the mean of its divisors is an integer number (71161956).

Almost surely, 2^142323911 is an apocalyptic number.

142323911 is a deficient number, since it is larger than the sum of its proper divisors (1).

142323911 is an equidigital number, since it uses as much as digits as its factorization.

142323911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 142323911 is about 11929.9585498023. The cubic root of 142323911 is about 522.1067281756.

The spelling of 142323911 in words is "one hundred forty-two million, three hundred twenty-three thousand, nine hundred eleven".