142311111211 has 2 divisors, whose sum is σ = 142311111212. Its totient is φ = 142311111210.

The previous prime is 142311111199. The next prime is 142311111259. The reversal of 142311111211 is 112111113241.

It is a m-pointer prime, because the next prime (142311111259) can be obtained adding 142311111211 to its product of digits (48).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142311111211 - 2²³ = 142302722603 is a prime.

It is not a weakly prime, because it can be changed into another prime (142311111511) 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 as a sum of consecutive naturals, namely, 71155555605 + 71155555606.

It is an arithmetic number, because the mean of its divisors is an integer number (71155555606).

Almost surely, 2^142311111211 is an apocalyptic number.

142311111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

142311111211 is an equidigital number, since it uses as much as digits as its factorization.

142311111211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 19.

Adding to 142311111211 its reverse (112111113241), we get a palindrome (254422224452).

The spelling of 142311111211 in words is "one hundred forty-two billion, three hundred eleven million, one hundred eleven thousand, two hundred eleven".