12510400103143 has 4 divisors (see below), whose sum is σ = 12512066608600. Its totient is φ = 12508733597688.

The previous prime is 12510400103093. The next prime is 12510400103219. The reversal of 12510400103143 is 34130100401521.

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-12510400103143 is a prime.

It is a super-2 number, since 2×12510400103143² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12510400103543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833241468 + ... + 833256481.

It is an arithmetic number, because the mean of its divisors is an integer number (3128016652150).

Almost surely, 2^{12510400103143} is an apocalyptic number.

12510400103143 is a deficient number, since it is larger than the sum of its proper divisors (1666505457).

12510400103143 is an equidigital number, since it uses as much as digits as its factorization.

12510400103143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666505456.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 12510400103143 its reverse (34130100401521), we get a palindrome (46640500504664).

The spelling of 12510400103143 in words is "twelve trillion, five hundred ten billion, four hundred million, one hundred three thousand, one hundred forty-three".