120202103123 has 4 divisors (see below), whose sum is σ = 120648951360. Its totient is φ = 119755254888.

The previous prime is 120202103117. The next prime is 120202103137. The reversal of 120202103123 is 321301202021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321301202021 = 139 ⋅2311519439.

It is a cyclic number.

It is not a de Polignac number, because 120202103123 - 2¹² = 120202099027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120202103323) 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, 223423715 + ... + 223424252.

It is an arithmetic number, because the mean of its divisors is an integer number (30162237840).

Almost surely, 2^120202103123 is an apocalyptic number.

120202103123 is a deficient number, since it is larger than the sum of its proper divisors (446848237).

120202103123 is an equidigital number, since it uses as much as digits as its factorization.

120202103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446848236.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120202103123 its reverse (321301202021), we get a palindrome (441503305144).

The spelling of 120202103123 in words is "one hundred twenty billion, two hundred two million, one hundred three thousand, one hundred twenty-three".