2320540531 has 4 divisors (see below), whose sum is σ = 2400559200. Its totient is φ = 2240521864.

The previous prime is 2320540529. The next prime is 2320540543. The reversal of 2320540531 is 1350450232.

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 2320540531 - 2¹ = 2320540529 is a prime.

It is a super-2 number, since 2×2320540531² = 10769816712027523922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2320540496 and 2320540505.

It is not an unprimeable number, because it can be changed into a prime (2320540561) 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, 40009291 + ... + 40009348.

It is an arithmetic number, because the mean of its divisors is an integer number (600139800).

Almost surely, 2^2320540531 is an apocalyptic number.

2320540531 is a deficient number, since it is larger than the sum of its proper divisors (80018669).

2320540531 is an equidigital number, since it uses as much as digits as its factorization.

2320540531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80018668.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2320540531 is about 48171.9890704131. The cubic root of 2320540531 is about 1323.9239928848.

Adding to 2320540531 its reverse (1350450232), we get a palindrome (3670990763).

It can be divided in two parts, 23205 and 40531, that added together give a palindrome (63736).

The spelling of 2320540531 in words is "two billion, three hundred twenty million, five hundred forty thousand, five hundred thirty-one".