13131033045550 has 96 divisors (see below), whose sum is σ = 28885226227200. Its totient is φ = 4345335845760.

The previous prime is 13131033045547. The next prime is 13131033045617. The reversal of 13131033045550 is 5554033013131.

It is a happy number.

It is a super-2 number, since 2×13131033045550² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29610759 + ... + 30050941.

It is an arithmetic number, because the mean of its divisors is an integer number (300887773200).

Almost surely, 2^{13131033045550} is an apocalyptic number.

13131033045550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13131033045550 is an abundant number, since it is smaller than the sum of its proper divisors (15754193181650).

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

13131033045550 is a wasteful number, since it uses less digits than its factorization.

13131033045550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443170 (or 443165 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 34.

Adding to 13131033045550 its reverse (5554033013131), we get a palindrome (18685066058681).

The spelling of 13131033045550 in words is "thirteen trillion, one hundred thirty-one billion, thirty-three million, forty-five thousand, five hundred fifty".