100203110503 has 2 divisors, whose sum is σ = 100203110504. Its totient is φ = 100203110502.

The previous prime is 100203110479. The next prime is 100203110521. The reversal of 100203110503 is 305011302001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100203110503 - 2²⁹ = 99666239591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100203110533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50101555251 + 50101555252.

It is an arithmetic number, because the mean of its divisors is an integer number (50101555252).

Almost surely, 2^100203110503 is an apocalyptic number.

100203110503 is a deficient number, since it is larger than the sum of its proper divisors (1).

100203110503 is an equidigital number, since it uses as much as digits as its factorization.

100203110503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 16.

Adding to 100203110503 its reverse (305011302001), we get a palindrome (405214412504).

The spelling of 100203110503 in words is "one hundred billion, two hundred three million, one hundred ten thousand, five hundred three".