111440004523 has 2 divisors, whose sum is σ = 111440004524. Its totient is φ = 111440004522.

The previous prime is 111440004509. The next prime is 111440004607. The reversal of 111440004523 is 325400044111.

It is a weak prime.

It is an emirp because it is prime and its reverse (325400044111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111440004523 - 2⁵ = 111440004491 is a prime.

It is not a weakly prime, because it can be changed into another prime (111440004023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55720002261 + 55720002262.

It is an arithmetic number, because the mean of its divisors is an integer number (55720002262).

Almost surely, 2^111440004523 is an apocalyptic number.

111440004523 is a deficient number, since it is larger than the sum of its proper divisors (1).

111440004523 is an equidigital number, since it uses as much as digits as its factorization.

111440004523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 111440004523 its reverse (325400044111), we get a palindrome (436840048634).

The spelling of 111440004523 in words is "one hundred eleven billion, four hundred forty million, four thousand, five hundred twenty-three".