111525104387 has 2 divisors, whose sum is σ = 111525104388. Its totient is φ = 111525104386.

The previous prime is 111525104381. The next prime is 111525104401. The reversal of 111525104387 is 783401525111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111525104387 - 2³⁶ = 42805627651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111525104387.

It is not a weakly prime, because it can be changed into another prime (111525104381) 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, 55762552193 + 55762552194.

It is an arithmetic number, because the mean of its divisors is an integer number (55762552194).

Almost surely, 2^111525104387 is an apocalyptic number.

111525104387 is a deficient number, since it is larger than the sum of its proper divisors (1).

111525104387 is an equidigital number, since it uses as much as digits as its factorization.

111525104387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 38.

Adding to 111525104387 its reverse (783401525111), we get a palindrome (894926629498).

The spelling of 111525104387 in words is "one hundred eleven billion, five hundred twenty-five million, one hundred four thousand, three hundred eighty-seven".