2303012531 has 4 divisors (see below), whose sum is σ = 2303445432. Its totient is φ = 2302579632.

The previous prime is 2303012527. The next prime is 2303012557. The reversal of 2303012531 is 1352103032.

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 2303012531 - 2² = 2303012527 is a prime.

It is a super-2 number, since 2×2303012531² = 10607733435886051922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2303012521) 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, 208370 + ... + 219143.

It is an arithmetic number, because the mean of its divisors is an integer number (575861358).

Almost surely, 2^2303012531 is an apocalyptic number.

2303012531 is a deficient number, since it is larger than the sum of its proper divisors (432901).

2303012531 is an equidigital number, since it uses as much as digits as its factorization.

2303012531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432900.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 2303012531 is about 47989.7127622160. The cubic root of 2303012531 is about 1320.5821833124.

Adding to 2303012531 its reverse (1352103032), we get a palindrome (3655115563).

The spelling of 2303012531 in words is "two billion, three hundred three million, twelve thousand, five hundred thirty-one".