142143520211 has 16 divisors (see below), whose sum is σ = 177226168320. Its totient is φ = 110756014080.

The previous prime is 142143520201. The next prime is 142143520217. The reversal of 142143520211 is 112025341241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142143520211 - 2¹⁸ = 142143258067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142143520217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3044435 + ... + 3090771.

It is an arithmetic number, because the mean of its divisors is an integer number (11076635520).

Almost surely, 2^142143520211 is an apocalyptic number.

142143520211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142143520211 is a deficient number, since it is larger than the sum of its proper divisors (35082648109).

142143520211 is a wasteful number, since it uses less digits than its factorization.

142143520211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86194.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 142143520211 its reverse (112025341241), we get a palindrome (254168861452).

The spelling of 142143520211 in words is "one hundred forty-two billion, one hundred forty-three million, five hundred twenty thousand, two hundred eleven".