42143442111 has 24 divisors (see below), whose sum is σ = 61919544960. Its totient is φ = 27613219536.

The previous prime is 42143442101. The next prime is 42143442149. The reversal of 42143442111 is 11124434124.

42143442111 is a `hidden beast` number, since 4 + 214 + 3 + 442 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 42143442111 - 2¹³ = 42143433919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143442101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4448766 + ... + 4458228.

It is an arithmetic number, because the mean of its divisors is an integer number (2579981040).

Almost surely, 2^42143442111 is an apocalyptic number.

42143442111 is a deficient number, since it is larger than the sum of its proper divisors (19776102849).

42143442111 is a wasteful number, since it uses less digits than its factorization.

42143442111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17915 (or 17912 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 42143442111 its reverse (11124434124), we get a palindrome (53267876235).

The spelling of 42143442111 in words is "forty-two billion, one hundred forty-three million, four hundred forty-two thousand, one hundred eleven".