2231352543 has 20 divisors (see below), whose sum is σ = 3470797528. Its totient is φ = 1275054480.

The previous prime is 2231352491. The next prime is 2231352559. The reversal of 2231352543 is 3452531322.

It is not a de Polignac number, because 2231352543 - 2¹³ = 2231344351 is a prime.

It is a super-3 number, since 3×2231352543³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231352543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231352593) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 147688 + ... + 162093.

Almost surely, 2^2231352543 is an apocalyptic number.

2231352543 is a deficient number, since it is larger than the sum of its proper divisors (1239444985).

2231352543 is an frugal number, since it uses more digits than its factorization.

2231352543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309812 (or 309791 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

The square root of 2231352543 is about 47237.1944869718. The cubic root of 2231352543 is about 1306.7406381734.

Adding to 2231352543 its reverse (3452531322), we get a palindrome (5683883865).

The spelling of 2231352543 in words is "two billion, two hundred thirty-one million, three hundred fifty-two thousand, five hundred forty-three".