13112230520550 has 96 divisors (see below), whose sum is σ = 37166883524352. Its totient is φ = 2996833207680.

The previous prime is 13112230520549. The next prime is 13112230520603. The reversal of 13112230520550 is 5502503221131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12327684 + ... + 13349016.

It is an arithmetic number, because the mean of its divisors is an integer number (387155036712).

Almost surely, 2^{13112230520550} is an apocalyptic number.

13112230520550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13112230520550 is an abundant number, since it is smaller than the sum of its proper divisors (24054653003802).

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

13112230520550 is a wasteful number, since it uses less digits than its factorization.

13112230520550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033582 (or 1033577 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 13112230520550 its reverse (5502503221131), we get a palindrome (18614733741681).

The spelling of 13112230520550 in words is "thirteen trillion, one hundred twelve billion, two hundred thirty million, five hundred twenty thousand, five hundred fifty".