111858742133 has 4 divisors (see below), whose sum is σ = 116722165728. Its totient is φ = 106995318540.

The previous prime is 111858742117. The next prime is 111858742169. The reversal of 111858742133 is 331247858111.

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 111858742133 - 2⁴ = 111858742117 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 (111858742433) 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, 2431711763 + ... + 2431711808.

It is an arithmetic number, because the mean of its divisors is an integer number (29180541432).

Almost surely, 2^111858742133 is an apocalyptic number.

It is an amenable number.

111858742133 is a deficient number, since it is larger than the sum of its proper divisors (4863423595).

111858742133 is an equidigital number, since it uses as much as digits as its factorization.

111858742133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4863423594.

The product of its digits is 161280, while the sum is 44.

The spelling of 111858742133 in words is "one hundred eleven billion, eight hundred fifty-eight million, seven hundred forty-two thousand, one hundred thirty-three".