421136102503 has 2 divisors, whose sum is σ = 421136102504. Its totient is φ = 421136102502.

The previous prime is 421136102459. The next prime is 421136102561. The reversal of 421136102503 is 305201631124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421136102503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421136102203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210568051251 + 210568051252.

It is an arithmetic number, because the mean of its divisors is an integer number (210568051252).

Almost surely, 2^421136102503 is an apocalyptic number.

421136102503 is a deficient number, since it is larger than the sum of its proper divisors (1).

421136102503 is an equidigital number, since it uses as much as digits as its factorization.

421136102503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 421136102503 its reverse (305201631124), we get a palindrome (726337733627).

The spelling of 421136102503 in words is "four hundred twenty-one billion, one hundred thirty-six million, one hundred two thousand, five hundred three".