111401312103 has 48 divisors (see below), whose sum is σ = 176787277056. Its totient is φ = 67293020160.

The previous prime is 111401312063. The next prime is 111401312119. The reversal of 111401312103 is 301213104111.

It is a happy number.

It is not a de Polignac number, because 111401312103 - 2¹⁰ = 111401311079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111401312173) 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 in 47 ways as a sum of consecutive naturals, for example, 854551 + ... + 976247.

It is an arithmetic number, because the mean of its divisors is an integer number (3683068272).

Almost surely, 2^111401312103 is an apocalyptic number.

111401312103 is a deficient number, since it is larger than the sum of its proper divisors (65385964953).

111401312103 is a wasteful number, since it uses less digits than its factorization.

111401312103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121944 (or 121941 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111401312103 its reverse (301213104111), we get a palindrome (412614416214).

The spelling of 111401312103 in words is "one hundred eleven billion, four hundred one million, three hundred twelve thousand, one hundred three".