111204506641 has 4 divisors (see below), whose sum is σ = 111233193652. Its totient is φ = 111175819632.

The previous prime is 111204506597. The next prime is 111204506683. The reversal of 111204506641 is 146605402111.

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 9255209616 + 101949297025 = 96204^2 + 319295^2 .

It is a cyclic number.

It is not a de Polignac number, because 111204506641 - 2⁷ = 111204506513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111204516641) 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, 14337690 + ... + 14345443.

It is an arithmetic number, because the mean of its divisors is an integer number (27808298413).

Almost surely, 2^111204506641 is an apocalyptic number.

It is an amenable number.

111204506641 is a deficient number, since it is larger than the sum of its proper divisors (28687011).

111204506641 is an equidigital number, since it uses as much as digits as its factorization.

111204506641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28687010.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 111204506641 its reverse (146605402111), we get a palindrome (257809908752).

The spelling of 111204506641 in words is "one hundred eleven billion, two hundred four million, five hundred six thousand, six hundred forty-one".