13505251142104 has 8 divisors (see below), whose sum is σ = 25322345891460. Its totient is φ = 6752625571048.

The previous prime is 13505251141981. The next prime is 13505251142111. The reversal of 13505251142104 is 40124115250531.

13505251142104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×13505251142104² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13505251142104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 844078196374 + ... + 844078196389.

Almost surely, 2^{13505251142104} is an apocalyptic number.

It is an amenable number.

13505251142104 is a deficient number, since it is larger than the sum of its proper divisors (11817094749356).

13505251142104 is a wasteful number, since it uses less digits than its factorization.

13505251142104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688156392769 (or 1688156392765 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 13505251142104 its reverse (40124115250531), we get a palindrome (53629366392635).

The spelling of 13505251142104 in words is "thirteen trillion, five hundred five billion, two hundred fifty-one million, one hundred forty-two thousand, one hundred four".