3113312550 has 24 divisors (see below), whose sum is σ = 7721015496. Its totient is φ = 830216640.

The previous prime is 3113312539. The next prime is 3113312563. The reversal of 3113312550 is 552133113.

It is a self number, because there is not a number n which added to its sum of digits gives 3113312550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10377559 + ... + 10377858.

It is an arithmetic number, because the mean of its divisors is an integer number (321708979).

Almost surely, 2^3113312550 is an apocalyptic number.

3113312550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3113312550 is an abundant number, since it is smaller than the sum of its proper divisors (4607702946).

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

3113312550 is a wasteful number, since it uses less digits than its factorization.

3113312550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20755432 (or 20755427 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 3113312550 is about 55797.0657830678. The cubic root of 3113312550 is about 1460.1839622452.

Adding to 3113312550 its reverse (552133113), we get a palindrome (3665445663).

The spelling of 3113312550 in words is "three billion, one hundred thirteen million, three hundred twelve thousand, five hundred fifty".