111381336163787 has 4 divisors (see below), whose sum is σ = 111381421617480. Its totient is φ = 111381250710096.

The previous prime is 111381336163781. The next prime is 111381336163829. The reversal of 111381336163787 is 787361633183111.

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

It is a cyclic number.

It is not a de Polignac number, because 111381336163787 - 2⁴ = 111381336163771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111381336163781) 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, 40740962 + ... + 43388807.

It is an arithmetic number, because the mean of its divisors is an integer number (27845355404370).

Almost surely, 2^{111381336163787} is an apocalyptic number.

111381336163787 is a deficient number, since it is larger than the sum of its proper divisors (85453693).

111381336163787 is an equidigital number, since it uses as much as digits as its factorization.

111381336163787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85453692.

The product of its digits is 9144576, while the sum is 59.

The spelling of 111381336163787 in words is "one hundred eleven trillion, three hundred eighty-one billion, three hundred thirty-six million, one hundred sixty-three thousand, seven hundred eighty-seven".