2120323 has 4 divisors (see below), whose sum is σ = 2142280. Its totient is φ = 2098368.

The previous prime is 2120317. The next prime is 2120329. The reversal of 2120323 is 3230212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2120317) and next prime (2120329).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120323 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120329) 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, 10833 + ... + 11026.

It is an arithmetic number, because the mean of its divisors is an integer number (535570).

2^2120323 is an apocalyptic number.

2120323 is a deficient number, since it is larger than the sum of its proper divisors (21957).

2120323 is an equidigital number, since it uses as much as digits as its factorization.

2120323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21956.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2120323 is about 1456.1328922870. The cubic root of 2120323 is about 128.4696895913.

Adding to 2120323 its reverse (3230212), we get a palindrome (5350535).

The spelling of 2120323 in words is "two million, one hundred twenty thousand, three hundred twenty-three".