42140102111 has 4 divisors (see below), whose sum is σ = 42166004232. Its totient is φ = 42114199992.

The previous prime is 42140102089. The next prime is 42140102131. The reversal of 42140102111 is 11120104124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42140102111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42140102111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42140102131) 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, 12948620 + ... + 12951873.

It is an arithmetic number, because the mean of its divisors is an integer number (10541501058).

Almost surely, 2^42140102111 is an apocalyptic number.

42140102111 is a deficient number, since it is larger than the sum of its proper divisors (25902121).

42140102111 is a wasteful number, since it uses less digits than its factorization.

42140102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25902120.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 42140102111 its reverse (11120104124), we get a palindrome (53260206235).

The spelling of 42140102111 in words is "forty-two billion, one hundred forty million, one hundred two thousand, one hundred eleven".