120010012123 has 4 divisors (see below), whose sum is σ = 120010723848. Its totient is φ = 120009300400.

The previous prime is 120010012093. The next prime is 120010012139. The reversal of 120010012123 is 321210010021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 321210010021 = 331 ⋅970422991.

It is a cyclic number.

It is not a de Polignac number, because 120010012123 - 2²⁵ = 119976457691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120010016123) 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, 55815 + ... + 493087.

It is an arithmetic number, because the mean of its divisors is an integer number (30002680962).

Almost surely, 2^120010012123 is an apocalyptic number.

120010012123 is a deficient number, since it is larger than the sum of its proper divisors (711725).

120010012123 is an equidigital number, since it uses as much as digits as its factorization.

120010012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711724.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 120010012123 its reverse (321210010021), we get a palindrome (441220022144).

The spelling of 120010012123 in words is "one hundred twenty billion, ten million, twelve thousand, one hundred twenty-three".