10503212543 has 2 divisors, whose sum is σ = 10503212544. Its totient is φ = 10503212542.

The previous prime is 10503212539. The next prime is 10503212569. The reversal of 10503212543 is 34521230501.

It is a happy number.

It is an a-pointer prime, because the next prime (10503212569) can be obtained adding 10503212543 to its sum of digits (26).

It is a weak prime.

It is an emirp because it is prime and its reverse (34521230501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10503212543 - 2² = 10503212539 is a prime.

It is a super-2 number, since 2×10503212543² (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10503215543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5251606271 + 5251606272.

It is an arithmetic number, because the mean of its divisors is an integer number (5251606272).

Almost surely, 2^10503212543 is an apocalyptic number.

10503212543 is a deficient number, since it is larger than the sum of its proper divisors (1).

10503212543 is an equidigital number, since it uses as much as digits as its factorization.

10503212543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 10503212543 in words is "ten billion, five hundred three million, two hundred twelve thousand, five hundred forty-three".