42124242043111 has 4 divisors (see below), whose sum is σ = 42299031429424. Its totient is φ = 41949452656800.

The previous prime is 42124242043099. The next prime is 42124242043123. The reversal of 42124242043111 is 11134024242124.

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

It is an interprime number because it is at equal distance from previous prime (42124242043099) and next prime (42124242043123).

It is a cyclic number.

It is not a de Polignac number, because 42124242043111 - 2⁹ = 42124242042599 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 (42124242043711) 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, 87394692795 + ... + 87394693276.

It is an arithmetic number, because the mean of its divisors is an integer number (10574757857356).

Almost surely, 2^{42124242043111} is an apocalyptic number.

42124242043111 is a deficient number, since it is larger than the sum of its proper divisors (174789386313).

42124242043111 is a wasteful number, since it uses less digits than its factorization.

42124242043111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174789386312.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 42124242043111 its reverse (11134024242124), we get a palindrome (53258266285235).

The spelling of 42124242043111 in words is "forty-two trillion, one hundred twenty-four billion, two hundred forty-two million, forty-three thousand, one hundred eleven".