120423311103 has 4 divisors (see below), whose sum is σ = 160564414808. Its totient is φ = 80282207400.

The previous prime is 120423311087. The next prime is 120423311201. The reversal of 120423311103 is 301113324021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301113324021 = 3 ⋅100371108007.

It is not a de Polignac number, because 120423311103 - 2⁴ = 120423311087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120423311103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120423311803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20070551848 + ... + 20070551853.

It is an arithmetic number, because the mean of its divisors is an integer number (40141103702).

Almost surely, 2^120423311103 is an apocalyptic number.

120423311103 is a deficient number, since it is larger than the sum of its proper divisors (40141103705).

120423311103 is an equidigital number, since it uses as much as digits as its factorization.

120423311103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40141103704.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 120423311103 its reverse (301113324021), we get a palindrome (421536635124).

The spelling of 120423311103 in words is "one hundred twenty billion, four hundred twenty-three million, three hundred eleven thousand, one hundred three".