142143044111 has 4 divisors (see below), whose sum is σ = 142364107032. Its totient is φ = 141921981192.

The previous prime is 142143044059. The next prime is 142143044117. The reversal of 142143044111 is 111440341241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142143044111 - 2⁶ = 142143044047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142143044117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110530496 + ... + 110531781.

It is an arithmetic number, because the mean of its divisors is an integer number (35591026758).

Almost surely, 2^142143044111 is an apocalyptic number.

142143044111 is a deficient number, since it is larger than the sum of its proper divisors (221062921).

142143044111 is an equidigital number, since it uses as much as digits as its factorization.

142143044111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221062920.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 142143044111 its reverse (111440341241), we get a palindrome (253583385352).

The spelling of 142143044111 in words is "one hundred forty-two billion, one hundred forty-three million, forty-four thousand, one hundred eleven".