13155511313111 has 32 divisors (see below), whose sum is σ = 14565965875200. Its totient is φ = 11832177651840.

The previous prime is 13155511313083. The next prime is 13155511313129. The reversal of 13155511313111 is 11131311555131.

13155511313111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13155511313111 - 2⁶ = 13155511313047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155511303111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367999340 + ... + 368035086.

It is an arithmetic number, because the mean of its divisors is an integer number (455186433600).

Almost surely, 2^{13155511313111} is an apocalyptic number.

13155511313111 is a deficient number, since it is larger than the sum of its proper divisors (1410454562089).

13155511313111 is a wasteful number, since it uses less digits than its factorization.

13155511313111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47639.

The product of its digits is 3375, while the sum is 32.

Adding to 13155511313111 its reverse (11131311555131), we get a palindrome (24286822868242).

The spelling of 13155511313111 in words is "thirteen trillion, one hundred fifty-five billion, five hundred eleven million, three hundred thirteen thousand, one hundred eleven".