42145442111 has 8 divisors (see below), whose sum is σ = 43832416320. Its totient is φ = 40487305248.

The previous prime is 42145442069. The next prime is 42145442117. The reversal of 42145442111 is 11124454124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42145442111 - 2²⁶ = 42078333247 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 (42145442117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7206356 + ... + 7212201.

It is an arithmetic number, because the mean of its divisors is an integer number (5479052040).

Almost surely, 2^42145442111 is an apocalyptic number.

42145442111 is a deficient number, since it is larger than the sum of its proper divisors (1686974209).

42145442111 is a wasteful number, since it uses less digits than its factorization.

42145442111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14418673.

The product of its digits is 5120, while the sum is 29.

Adding to 42145442111 its reverse (11124454124), we get a palindrome (53269896235).

The spelling of 42145442111 in words is "forty-two billion, one hundred forty-five million, four hundred forty-two thousand, one hundred eleven".