13155312530044 has 24 divisors (see below), whose sum is σ = 25162343515008. Its totient is φ = 5991034168320.

The previous prime is 13155312529963. The next prime is 13155312530047. The reversal of 13155312530044 is 44003521355131.

It is a junction number, because it is equal to n+sod(n) for n = 13155312529985 and 13155312530012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155312530047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3120328189 + ... + 3120332404.

It is an arithmetic number, because the mean of its divisors is an integer number (1048430979792).

Almost surely, 2^{13155312530044} is an apocalyptic number.

It is an amenable number.

13155312530044 is a deficient number, since it is larger than the sum of its proper divisors (12007030984964).

13155312530044 is a wasteful number, since it uses less digits than its factorization.

13155312530044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6240660645 (or 6240660643 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 13155312530044 its reverse (44003521355131), we get a palindrome (57158833885175).

The spelling of 13155312530044 in words is "thirteen trillion, one hundred fifty-five billion, three hundred twelve million, five hundred thirty thousand, forty-four".