2231543503 has 8 divisors (see below), whose sum is σ = 2604598272. Its totient is φ = 1872054456.

The previous prime is 2231543477. The next prime is 2231543527. The reversal of 2231543503 is 3053451322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2231543503 - 2⁹ = 2231542991 is a prime.

It is a super-3 number, since 3×2231543503³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231543563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3391075 + ... + 3391732.

It is an arithmetic number, because the mean of its divisors is an integer number (325574784).

Almost surely, 2^2231543503 is an apocalyptic number.

2231543503 is a deficient number, since it is larger than the sum of its proper divisors (373054769).

2231543503 is an equidigital number, since it uses as much as digits as its factorization.

2231543503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6782861.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 2231543503 is about 47239.2157322706. The cubic root of 2231543503 is about 1306.7779142305. Note that the first 3 decimals are identical.

Adding to 2231543503 its reverse (3053451322), we get a palindrome (5284994825).

The spelling of 2231543503 in words is "two billion, two hundred thirty-one million, five hundred forty-three thousand, five hundred three".