100503263 has 6 divisors (see below), whose sum is σ = 116912016. Its totient is φ = 86145612.

The previous prime is 100503257. The next prime is 100503287. The reversal of 100503263 is 362305001.

It is not a de Polignac number, because 100503263 - 2⁶ = 100503199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100503223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1025495 + ... + 1025592.

It is an arithmetic number, because the mean of its divisors is an integer number (19485336).

Almost surely, 2^100503263 is an apocalyptic number.

100503263 is a deficient number, since it is larger than the sum of its proper divisors (16408753).

100503263 is an equidigital number, since it uses as much as digits as its factorization.

100503263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051101 (or 2051094 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 100503263 is about 10025.1315702089. The cubic root of 100503263 is about 464.9362274280.

Adding to 100503263 its reverse (362305001), we get a palindrome (462808264).

The spelling of 100503263 in words is "one hundred million, five hundred three thousand, two hundred sixty-three".