111434442403 has 4 divisors (see below), whose sum is σ = 112960941688. Its totient is φ = 109907943120.

The previous prime is 111434442377. The next prime is 111434442463. The reversal of 111434442403 is 304244434111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304244434111 = 4139 ⋅73506749.

It is a cyclic number.

It is not a de Polignac number, because 111434442403 - 2²¹ = 111432345251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111434442463) 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, 763249533 + ... + 763249678.

It is an arithmetic number, because the mean of its divisors is an integer number (28240235422).

Almost surely, 2^111434442403 is an apocalyptic number.

111434442403 is a deficient number, since it is larger than the sum of its proper divisors (1526499285).

111434442403 is an equidigital number, since it uses as much as digits as its factorization.

111434442403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526499284.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 111434442403 its reverse (304244434111), we get a palindrome (415678876514).

The spelling of 111434442403 in words is "one hundred eleven billion, four hundred thirty-four million, four hundred forty-two thousand, four hundred three".