2321442523 has 4 divisors (see below), whose sum is σ = 2326413960. Its totient is φ = 2316471088.

The previous prime is 2321442481. The next prime is 2321442527. The reversal of 2321442523 is 3252441232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2321442523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2321442491 and 2321442500.

It is not an unprimeable number, because it can be changed into a prime (2321442527) 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, 2485018 + ... + 2485951.

It is an arithmetic number, because the mean of its divisors is an integer number (581603490).

Almost surely, 2^2321442523 is an apocalyptic number.

2321442523 is a deficient number, since it is larger than the sum of its proper divisors (4971437).

2321442523 is an equidigital number, since it uses as much as digits as its factorization.

2321442523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4971436.

The product of its digits is 11520, while the sum is 28.

The square root of 2321442523 is about 48181.3503650531. The cubic root of 2321442523 is about 1324.0955066828.

Adding to 2321442523 its reverse (3252441232), we get a palindrome (5573883755).

The spelling of 2321442523 in words is "two billion, three hundred twenty-one million, four hundred forty-two thousand, five hundred twenty-three".