103331550503 has 4 divisors (see below), whose sum is σ = 103619382480. Its totient is φ = 103043718528.

The previous prime is 103331550403. The next prime is 103331550527. The reversal of 103331550503 is 305055133301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103331550503 - 2²⁰ = 103330501927 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 (103331550403) 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, 143915450 + ... + 143916167.

It is an arithmetic number, because the mean of its divisors is an integer number (25904845620).

Almost surely, 2^103331550503 is an apocalyptic number.

103331550503 is a deficient number, since it is larger than the sum of its proper divisors (287831977).

103331550503 is an equidigital number, since it uses as much as digits as its factorization.

103331550503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287831976.

The product of its (nonzero) digits is 10125, while the sum is 29.

Adding to 103331550503 its reverse (305055133301), we get a palindrome (408386683804).

The spelling of 103331550503 in words is "one hundred three billion, three hundred thirty-one million, five hundred fifty thousand, five hundred three".