120123100213 has 4 divisors (see below), whose sum is σ = 120123894508. Its totient is φ = 120122305920.

The previous prime is 120123100187. The next prime is 120123100243. The reversal of 120123100213 is 312001321021.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 77324593329 + 42798506884 = 278073^2 + 206878^2 .

It is a cyclic number.

It is not a de Polignac number, because 120123100213 - 2³³ = 111533165621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120123100243) 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, 92298 + ... + 498763.

It is an arithmetic number, because the mean of its divisors is an integer number (30030973627).

Almost surely, 2^120123100213 is an apocalyptic number.

It is an amenable number.

120123100213 is a deficient number, since it is larger than the sum of its proper divisors (794295).

120123100213 is an equidigital number, since it uses as much as digits as its factorization.

120123100213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794294.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 120123100213 its reverse (312001321021), we get a palindrome (432124421234).

The spelling of 120123100213 in words is "one hundred twenty billion, one hundred twenty-three million, one hundred thousand, two hundred thirteen".