10503434987 has 2 divisors, whose sum is σ = 10503434988. Its totient is φ = 10503434986.

The previous prime is 10503434969. The next prime is 10503435037. The reversal of 10503434987 is 78943430501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10503434987 - 2¹⁴ = 10503418603 is a prime.

It is a super-2 number, since 2×10503434987² (a number of 21 digits) contains 22 as substring.

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

It is not a weakly prime, because it can be changed into another prime (10503434957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5251717493 + 5251717494.

It is an arithmetic number, because the mean of its divisors is an integer number (5251717494).

Almost surely, 2^10503434987 is an apocalyptic number.

10503434987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10503434987 is an equidigital number, since it uses as much as digits as its factorization.

10503434987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 10503434987 in words is "ten billion, five hundred three million, four hundred thirty-four thousand, nine hundred eighty-seven".