120031000123 has 4 divisors (see below), whose sum is σ = 120080054880. Its totient is φ = 119981945368.

The previous prime is 120031000099. The next prime is 120031000181. The reversal of 120031000123 is 321000130021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321000130021 = 787 ⋅407878183.

It is a cyclic number.

It is not a de Polignac number, because 120031000123 - 2³³ = 111441065531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120031000223) 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, 24523708 + ... + 24528601.

It is an arithmetic number, because the mean of its divisors is an integer number (30020013720).

Almost surely, 2^120031000123 is an apocalyptic number.

120031000123 is a deficient number, since it is larger than the sum of its proper divisors (49054757).

120031000123 is an equidigital number, since it uses as much as digits as its factorization.

120031000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49054756.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 120031000123 its reverse (321000130021), we get a palindrome (441031130144).

The spelling of 120031000123 in words is "one hundred twenty billion, thirty-one million, one hundred twenty-three", and thus it is an aban number.