2120123 has 8 divisors (see below), whose sum is σ = 2196480. Its totient is φ = 2045160.

The previous prime is 2120119. The next prime is 2120143. The reversal of 2120123 is 3210212.

It is a happy number.

2120123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2120123 - 2² = 2120119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3428 + ... + 3998.

It is an arithmetic number, because the mean of its divisors is an integer number (274560).

2^2120123 is an apocalyptic number.

2120123 is a deficient number, since it is larger than the sum of its proper divisors (76357).

2120123 is an equidigital number, since it uses as much as digits as its factorization.

2120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2120123 is about 1456.0642156169. The cubic root of 2120123 is about 128.4656501524.

Adding to 2120123 its reverse (3210212), we get a palindrome (5330335).

The spelling of 2120123 in words is "two million, one hundred twenty thousand, one hundred twenty-three".