111300042421 has 16 divisors (see below), whose sum is σ = 115770473280. Its totient is φ = 106914741120.

The previous prime is 111300042407. The next prime is 111300042443. The reversal of 111300042421 is 124240003111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111300042421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111300046421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6746635 + ... + 6763111.

It is an arithmetic number, because the mean of its divisors is an integer number (7235654580).

Almost surely, 2^111300042421 is an apocalyptic number.

It is an amenable number.

111300042421 is a deficient number, since it is larger than the sum of its proper divisors (4470430859).

111300042421 is a wasteful number, since it uses less digits than its factorization.

111300042421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19044.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 111300042421 its reverse (124240003111), we get a palindrome (235540045532).

The spelling of 111300042421 in words is "one hundred eleven billion, three hundred million, forty-two thousand, four hundred twenty-one".