111342742061 has 4 divisors (see below), whose sum is σ = 117202886400. Its totient is φ = 105482597724.

The previous prime is 111342741971. The next prime is 111342742109. The reversal of 111342742061 is 160247243111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111342742061 - 2¹⁴ = 111342725677 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 (111342742261) 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, 2930072141 + ... + 2930072178.

It is an arithmetic number, because the mean of its divisors is an integer number (29300721600).

Almost surely, 2^111342742061 is an apocalyptic number.

It is an amenable number.

111342742061 is a deficient number, since it is larger than the sum of its proper divisors (5860144339).

111342742061 is an equidigital number, since it uses as much as digits as its factorization.

111342742061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860144338.

The product of its (nonzero) digits is 8064, while the sum is 32.

Adding to 111342742061 its reverse (160247243111), we get a palindrome (271589985172).

The spelling of 111342742061 in words is "one hundred eleven billion, three hundred forty-two million, seven hundred forty-two thousand, sixty-one".