111525104401 has 2 divisors, whose sum is σ = 111525104402. Its totient is φ = 111525104400.

The previous prime is 111525104387. The next prime is 111525104417. The reversal of 111525104401 is 104401525111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97506307600 + 14018796801 = 312260^2 + 118401^2 .

It is a cyclic number.

It is not a de Polignac number, because 111525104401 - 2³³ = 102935169809 is a prime.

It is not a weakly prime, because it can be changed into another prime (111025104401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55762552200 + 55762552201.

It is an arithmetic number, because the mean of its divisors is an integer number (55762552201).

Almost surely, 2^111525104401 is an apocalyptic number.

It is an amenable number.

111525104401 is a deficient number, since it is larger than the sum of its proper divisors (1).

111525104401 is an equidigital number, since it uses as much as digits as its factorization.

111525104401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 111525104401 its reverse (104401525111), we get a palindrome (215926629512).

The spelling of 111525104401 in words is "one hundred eleven billion, five hundred twenty-five million, one hundred four thousand, four hundred one".