13111110180534 has 32 divisors (see below), whose sum is σ = 26540136362880. Its totient is φ = 4317391939712.

The previous prime is 13111110180533. The next prime is 13111110180589. The reversal of 13111110180534 is 43508101111131.

It is a happy number.

It is a super-2 number, since 2×13111110180534² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111110180533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5723377 + ... + 7679795.

It is an arithmetic number, because the mean of its divisors is an integer number (829379261340).

Almost surely, 2^{13111110180534} is an apocalyptic number.

13111110180534 is an abundant number, since it is smaller than the sum of its proper divisors (13429026182346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13111110180534 is a wasteful number, since it uses less digits than its factorization.

13111110180534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969964.

The product of its (nonzero) digits is 1440, while the sum is 30.

Adding to 13111110180534 its reverse (43508101111131), we get a palindrome (56619211291665).

The spelling of 13111110180534 in words is "thirteen trillion, one hundred eleven billion, one hundred ten million, one hundred eighty thousand, five hundred thirty-four".