1103115550 has 48 divisors (see below), whose sum is σ = 2223085392. Its totient is φ = 405619200.

The previous prime is 1103115539. The next prime is 1103115583. The reversal of 1103115550 is 555113011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21460 + ... + 51640.

It is an arithmetic number, because the mean of its divisors is an integer number (46314279).

Almost surely, 2^1103115550 is an apocalyptic number.

1103115550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1103115550 is an abundant number, since it is smaller than the sum of its proper divisors (1119969842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1103115550 is a wasteful number, since it uses less digits than its factorization.

1103115550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30253 (or 30248 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 22.

The square root of 1103115550 is about 33213.1833764847. The cubic root of 1103115550 is about 1033.2537787060.

Adding to 1103115550 its reverse (555113011), we get a palindrome (1658228561).

The spelling of 1103115550 in words is "one billion, one hundred three million, one hundred fifteen thousand, five hundred fifty".