2520123443 has 4 divisors (see below), whose sum is σ = 2532067368. Its totient is φ = 2508179520.

The previous prime is 2520123427. The next prime is 2520123449. The reversal of 2520123443 is 3443210252.

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

It is a cyclic number.

It is not a de Polignac number, because 2520123443 - 2⁴ = 2520123427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520123449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5971646 + ... + 5972067.

It is an arithmetic number, because the mean of its divisors is an integer number (633016842).

Almost surely, 2^2520123443 is an apocalyptic number.

2520123443 is a deficient number, since it is larger than the sum of its proper divisors (11943925).

2520123443 is a wasteful number, since it uses less digits than its factorization.

2520123443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11943924.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2520123443 is about 50200.8310986980. The cubic root of 2520123443 is about 1360.8406428687.

Adding to 2520123443 its reverse (3443210252), we get a palindrome (5963333695).

The spelling of 2520123443 in words is "two billion, five hundred twenty million, one hundred twenty-three thousand, four hundred forty-three".