111690602840941 has 4 divisors (see below), whose sum is σ = 114414763885884. Its totient is φ = 108966441796000.

The previous prime is 111690602840923. The next prime is 111690602840951. The reversal of 111690602840941 is 149048206096111.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31787652906916 + 79902949934025 = 5638054^2 + 8938845^2 .

It is a cyclic number.

It is not a de Polignac number, because 111690602840941 - 2⁹ = 111690602840429 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 (111690602840911) 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, 1362080522410 + ... + 1362080522491.

It is an arithmetic number, because the mean of its divisors is an integer number (28603690971471).

Almost surely, 2^{111690602840941} is an apocalyptic number.

It is an amenable number.

111690602840941 is a deficient number, since it is larger than the sum of its proper divisors (2724161044943).

111690602840941 is an equidigital number, since it uses as much as digits as its factorization.

111690602840941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724161044942.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 111690602840941 in words is "one hundred eleven trillion, six hundred ninety billion, six hundred two million, eight hundred forty thousand, nine hundred forty-one".