13451150380181 has 4 divisors (see below), whose sum is σ = 13779227218764. Its totient is φ = 13123073541600.

The previous prime is 13451150380177. The next prime is 13451150380183. The reversal of 13451150380181 is 18108305115431.

13451150380181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2301334510225 + 11149815869956 = 1517015^2 + 3339134^2 .

It is a cyclic number.

It is not a de Polignac number, because 13451150380181 - 2² = 13451150380177 is a prime.

It is a super-2 number, since 2×13451150380181² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 328076838541 = 13451150380181 / (1 + 3 + 4 + 5 + 1 + 1 + 5 + 0 + 3 + 8 + 0 + 1 + 8 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13451150380183) 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, 164038419230 + ... + 164038419311.

It is an arithmetic number, because the mean of its divisors is an integer number (3444806804691).

Almost surely, 2^{13451150380181} is an apocalyptic number.

It is an amenable number.

13451150380181 is a deficient number, since it is larger than the sum of its proper divisors (328076838583).

13451150380181 is an equidigital number, since it uses as much as digits as its factorization.

13451150380181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328076838582.

The product of its (nonzero) digits is 57600, while the sum is 41.

The spelling of 13451150380181 in words is "thirteen trillion, four hundred fifty-one billion, one hundred fifty million, three hundred eighty thousand, one hundred eighty-one".