120312223123 has 4 divisors (see below), whose sum is σ = 120837604240. Its totient is φ = 119786842008.

The previous prime is 120312223117. The next prime is 120312223133. The reversal of 120312223123 is 321322213021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120312223123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120312223094 and 120312223103.

It is not an unprimeable number, because it can be changed into a prime (120312223133) 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, 262690215 + ... + 262690672.

It is an arithmetic number, because the mean of its divisors is an integer number (30209401060).

Almost surely, 2^120312223123 is an apocalyptic number.

120312223123 is a deficient number, since it is larger than the sum of its proper divisors (525381117).

120312223123 is an equidigital number, since it uses as much as digits as its factorization.

120312223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525381116.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 120312223123 its reverse (321322213021), we get a palindrome (441634436144).

The spelling of 120312223123 in words is "one hundred twenty billion, three hundred twelve million, two hundred twenty-three thousand, one hundred twenty-three".