2321523 has 6 divisors (see below), whose sum is σ = 3353324. Its totient is φ = 1547676.

The previous prime is 2321519. The next prime is 2321531. The reversal of 2321523 is 3251232.

It is not a de Polignac number, because 2321523 - 2² = 2321519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2321496 and 2321505.

It is not an unprimeable number, because it can be changed into a prime (2321563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128965 + ... + 128982.

2^2321523 is an apocalyptic number.

2321523 is a deficient number, since it is larger than the sum of its proper divisors (1031801).

2321523 is a wasteful number, since it uses less digits than its factorization.

2321523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257953 (or 257950 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 2321523 is about 1523.6544883930. The cubic root of 2321523 is about 132.4110807227.

Adding to 2321523 its reverse (3251232), we get a palindrome (5572755).

The spelling of 2321523 in words is "two million, three hundred twenty-one thousand, five hundred twenty-three".