2543231223 has 64 divisors (see below), whose sum is σ = 4206545280. Its totient is φ = 1508419584.

The previous prime is 2543231221. The next prime is 2543231231. The reversal of 2543231223 is 3221323452.

2543231223 is a `hidden beast` number, since 2 + 5 + 432 + 3 + 1 + 223 = 666.

It is not a de Polignac number, because 2543231223 - 2¹ = 2543231221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543231221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1466665 + ... + 1468397.

It is an arithmetic number, because the mean of its divisors is an integer number (65727270).

Almost surely, 2^2543231223 is an apocalyptic number.

2543231223 is a deficient number, since it is larger than the sum of its proper divisors (1663314057).

2543231223 is a wasteful number, since it uses less digits than its factorization.

2543231223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905 (or 1899 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 2543231223 is about 50430.4592780990. The cubic root of 2543231223 is about 1364.9873154237.

Adding to 2543231223 its reverse (3221323452), we get a palindrome (5764554675).

The spelling of 2543231223 in words is "two billion, five hundred forty-three million, two hundred thirty-one thousand, two hundred twenty-three".