100503053 has 4 divisors (see below), whose sum is σ = 114860640. Its totient is φ = 86145468.

The previous prime is 100503047. The next prime is 100503097. The reversal of 100503053 is 350305001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 350305001 = 15193 ⋅23057.

It is a cyclic number.

It is not a de Polignac number, because 100503053 - 2¹⁸ = 100240909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100503043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7178783 + ... + 7178796.

It is an arithmetic number, because the mean of its divisors is an integer number (28715160).

Almost surely, 2^100503053 is an apocalyptic number.

It is an amenable number.

100503053 is a deficient number, since it is larger than the sum of its proper divisors (14357587).

100503053 is an equidigital number, since it uses as much as digits as its factorization.

100503053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14357586.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 100503053 is about 10025.1210965255. The cubic root of 100503053 is about 464.9359036021.

Adding to 100503053 its reverse (350305001), we get a palindrome (450808054).

The spelling of 100503053 in words is "one hundred million, five hundred three thousand, fifty-three".