2120122123 has 8 divisors (see below), whose sum is σ = 2426081792. Its totient is φ = 1814933736.

The previous prime is 2120122097. The next prime is 2120122141. The reversal of 2120122123 is 3212210212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2120122123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120122097 and 2120122106.

It is not an unprimeable number, because it can be changed into a prime (2120122153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186915 + ... + 197932.

It is an arithmetic number, because the mean of its divisors is an integer number (303260224).

Almost surely, 2^2120122123 is an apocalyptic number.

2120122123 is a deficient number, since it is larger than the sum of its proper divisors (305959669).

2120122123 is an equidigital number, since it uses as much as digits as its factorization.

2120122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385641.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2120122123 is about 46044.7838848224. The cubic root of 2120122123 is about 1284.6563243885.

Adding to 2120122123 its reverse (3212210212), we get a palindrome (5332332335).

The spelling of 2120122123 in words is "two billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twenty-three".