111100012553 has 4 divisors (see below), whose sum is σ = 111103238160. Its totient is φ = 111096786948.

The previous prime is 111100012549. The next prime is 111100012601. The reversal of 111100012553 is 355210001111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111100012553 - 2² = 111100012549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100012453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1560575 + ... + 1630212.

It is an arithmetic number, because the mean of its divisors is an integer number (27775809540).

Almost surely, 2^111100012553 is an apocalyptic number.

It is an amenable number.

111100012553 is a deficient number, since it is larger than the sum of its proper divisors (3225607).

111100012553 is an equidigital number, since it uses as much as digits as its factorization.

111100012553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3225606.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 111100012553 its reverse (355210001111), we get a palindrome (466310013664).

The spelling of 111100012553 in words is "one hundred eleven billion, one hundred million, twelve thousand, five hundred fifty-three".