13113443105451 has 144 divisors (see below), whose sum is σ = 22835346206400. Its totient is φ = 7192921190400.

The previous prime is 13113443105447. The next prime is 13113443105453. The reversal of 13113443105451 is 15450134431131.

It is a happy number.

13113443105451 is a `hidden beast` number, since 1 + 3 + 113 + 443 + 1 + 0 + 54 + 51 = 666.

It is not a de Polignac number, because 13113443105451 - 2² = 13113443105447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13113443105453) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 78464125 + ... + 78631073.

It is an arithmetic number, because the mean of its divisors is an integer number (158578793100).

Almost surely, 2^{13113443105451} is an apocalyptic number.

13113443105451 is a deficient number, since it is larger than the sum of its proper divisors (9721903100949).

13113443105451 is a wasteful number, since it uses less digits than its factorization.

13113443105451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167126 (or 167106 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 13113443105451 its reverse (15450134431131), we get a palindrome (28563577536582).

The spelling of 13113443105451 in words is "thirteen trillion, one hundred thirteen billion, four hundred forty-three million, one hundred five thousand, four hundred fifty-one".