142322311 has 2 divisors, whose sum is σ = 142322312. Its totient is φ = 142322310.

The previous prime is 142322273. The next prime is 142322339. The reversal of 142322311 is 113223241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142322311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142322381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71161155 + 71161156.

It is an arithmetic number, because the mean of its divisors is an integer number (71161156).

Almost surely, 2^142322311 is an apocalyptic number.

142322311 is a deficient number, since it is larger than the sum of its proper divisors (1).

142322311 is an equidigital number, since it uses as much as digits as its factorization.

142322311 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 142322311 is about 11929.8914915434. The cubic root of 142322311 is about 522.1047716670.

Adding to 142322311 its reverse (113223241), we get a palindrome (255545552).

The spelling of 142322311 in words is "one hundred forty-two million, three hundred twenty-two thousand, three hundred eleven".