2543212126003 has 16 divisors (see below), whose sum is σ = 2701449216000. Its totient is φ = 2389269373920.

The previous prime is 2543212125943. The next prime is 2543212126019. The reversal of 2543212126003 is 3006212123452.

It is a cyclic number.

It is not a de Polignac number, because 2543212126003 - 2¹⁷ = 2543211994931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543212126033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3317028 + ... + 4011121.

It is an arithmetic number, because the mean of its divisors is an integer number (168840576000).

Almost surely, 2^{2543212126003} is an apocalyptic number.

2543212126003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2543212126003 is a deficient number, since it is larger than the sum of its proper divisors (158237089997).

2543212126003 is a wasteful number, since it uses less digits than its factorization.

2543212126003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7328442.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 2543212126003 its reverse (3006212123452), we get a palindrome (5549424249455).

The spelling of 2543212126003 in words is "two trillion, five hundred forty-three billion, two hundred twelve million, one hundred twenty-six thousand, three".