120011113123 has 16 divisors (see below), whose sum is σ = 133208258400. Its totient is φ = 107206260480.

The previous prime is 120011113111. The next prime is 120011113139. The reversal of 120011113123 is 321311110021.

It is a happy number.

It is not a de Polignac number, because 120011113123 - 2⁵ = 120011113091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120011113097 and 120011113106.

It is not an unprimeable number, because it can be changed into a prime (120011113723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61788 + ... + 493801.

It is an arithmetic number, because the mean of its divisors is an integer number (8325516150).

Almost surely, 2^120011113123 is an apocalyptic number.

120011113123 is a deficient number, since it is larger than the sum of its proper divisors (13197145277).

120011113123 is a wasteful number, since it uses less digits than its factorization.

120011113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555942.

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

Adding to 120011113123 its reverse (321311110021), we get a palindrome (441322223144).

The spelling of 120011113123 in words is "one hundred twenty billion, eleven million, one hundred thirteen thousand, one hundred twenty-three".