120111312103 has 16 divisors (see below), whose sum is σ = 126344102400. Its totient is φ = 113964919200.

The previous prime is 120111312071. The next prime is 120111312119. The reversal of 120111312103 is 301213111021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120111312103 - 2⁵ = 120111312071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111312403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2437968 + ... + 2486746.

It is an arithmetic number, because the mean of its divisors is an integer number (7896506400).

Almost surely, 2^120111312103 is an apocalyptic number.

120111312103 is a deficient number, since it is larger than the sum of its proper divisors (6232790297).

120111312103 is a wasteful number, since it uses less digits than its factorization.

120111312103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49662.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 120111312103 its reverse (301213111021), we get a palindrome (421324423124).

The spelling of 120111312103 in words is "one hundred twenty billion, one hundred eleven million, three hundred twelve thousand, one hundred three".