2403232531 has 4 divisors (see below), whose sum is σ = 2746551472. Its totient is φ = 2059913592.

The previous prime is 2403232511. The next prime is 2403232543. The reversal of 2403232531 is 1352323042.

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 2403232531 - 2⁹ = 2403232019 is a prime.

It is a super-2 number, since 2×2403232531² = 11551053196113331922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2403232496 and 2403232505.

It is not an unprimeable number, because it can be changed into a prime (2403232501) 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, 171659460 + ... + 171659473.

It is an arithmetic number, because the mean of its divisors is an integer number (686637868).

Almost surely, 2^2403232531 is an apocalyptic number.

2403232531 is a deficient number, since it is larger than the sum of its proper divisors (343318941).

2403232531 is an equidigital number, since it uses as much as digits as its factorization.

2403232531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343318940.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 2403232531 is about 49022.7756354126. The cubic root of 2403232531 is about 1339.4667312620.

Adding to 2403232531 its reverse (1352323042), we get a palindrome (3755555573).

The spelling of 2403232531 in words is "two billion, four hundred three million, two hundred thirty-two thousand, five hundred thirty-one".