21134502435103 has 2 divisors, whose sum is σ = 21134502435104. Its totient is φ = 21134502435102.

The previous prime is 21134502434933. The next prime is 21134502435121. The reversal of 21134502435103 is 30153420543112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21134502435103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21134502435143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10567251217551 + 10567251217552.

It is an arithmetic number, because the mean of its divisors is an integer number (10567251217552).

Almost surely, 2^{21134502435103} is an apocalyptic number.

21134502435103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21134502435103 is an equidigital number, since it uses as much as digits as its factorization.

21134502435103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 21134502435103 its reverse (30153420543112), we get a palindrome (51287922978215).

The spelling of 21134502435103 in words is "twenty-one trillion, one hundred thirty-four billion, five hundred two million, four hundred thirty-five thousand, one hundred three".