12025102543 has 4 divisors (see below), whose sum is σ = 12052247688. Its totient is φ = 11997957400.

The previous prime is 12025102519. The next prime is 12025102547. The reversal of 12025102543 is 34520152021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12025102543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12025102547) 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, 13571908 + ... + 13572793.

It is an arithmetic number, because the mean of its divisors is an integer number (3013061922).

Almost surely, 2^12025102543 is an apocalyptic number.

12025102543 is a deficient number, since it is larger than the sum of its proper divisors (27145145).

12025102543 is an equidigital number, since it uses as much as digits as its factorization.

12025102543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27145144.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 12025102543 its reverse (34520152021), we get a palindrome (46545254564).

The spelling of 12025102543 in words is "twelve billion, twenty-five million, one hundred two thousand, five hundred forty-three".