2543231003 has 4 divisors (see below), whose sum is σ = 2653806288. Its totient is φ = 2432655720.

The previous prime is 2543230999. The next prime is 2543231017. The reversal of 2543231003 is 3001323452.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2543231003 - 2² = 2543230999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 110575261 = 2543231003 / (2 + 5 + 4 + 3 + 2 + 3 + 1 + 0 + 0 + 3).

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 2543231003.

It is not an unprimeable number, because it can be changed into a prime (2543231083) 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, 55287608 + ... + 55287653.

It is an arithmetic number, because the mean of its divisors is an integer number (663451572).

Almost surely, 2^2543231003 is an apocalyptic number.

2543231003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2543231003 is a deficient number, since it is larger than the sum of its proper divisors (110575285).

2543231003 is a wasteful number, since it uses less digits than its factorization.

2543231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110575284.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 2543231003 is about 50430.4570968775. The cubic root of 2543231003 is about 1364.9872760647.

Adding to 2543231003 its reverse (3001323452), we get a palindrome (5544554455).

The spelling of 2543231003 in words is "two billion, five hundred forty-three million, two hundred thirty-one thousand, three".