103503311 has 4 divisors (see below), whose sum is σ = 106027824. Its totient is φ = 100978800.

The previous prime is 103503299. The next prime is 103503331. The reversal of 103503311 is 113305301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113305301 = 43 ⋅2635007.

It is a cyclic number.

It is not a de Polignac number, because 103503311 - 2¹⁸ = 103241167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103503311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103503331) 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, 1262195 + ... + 1262276.

It is an arithmetic number, because the mean of its divisors is an integer number (26506956).

Almost surely, 2^103503311 is an apocalyptic number.

103503311 is a deficient number, since it is larger than the sum of its proper divisors (2524513).

103503311 is an equidigital number, since it uses as much as digits as its factorization.

103503311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524512.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 103503311 is about 10173.6577001588. The cubic root of 103503311 is about 469.5171002137.

Adding to 103503311 its reverse (113305301), we get a palindrome (216808612).

The spelling of 103503311 in words is "one hundred three million, five hundred three thousand, three hundred eleven".