11111161575213 has 24 divisors (see below), whose sum is σ = 19139723461248. Its totient is φ = 6073181481312.

The previous prime is 11111161575211. The next prime is 11111161575221. The reversal of 11111161575213 is 31257516111111.

11111161575213 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 1 + 1 + 61 + 575 + 21 + 3 = 666.

11111161575213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11111161575213 - 2¹ = 11111161575211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111161575211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3834077770 + ... + 3834080667.

It is an arithmetic number, because the mean of its divisors is an integer number (797488477552).

Almost surely, 2^{11111161575213} is an apocalyptic number.

It is an amenable number.

11111161575213 is a deficient number, since it is larger than the sum of its proper divisors (8028561886035).

11111161575213 is a wasteful number, since it uses less digits than its factorization.

11111161575213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7668158473 (or 7668158470 counting only the distinct ones).

The product of its digits is 6300, while the sum is 36.

Adding to 11111161575213 its reverse (31257516111111), we get a palindrome (42368677686324).

The spelling of 11111161575213 in words is "eleven trillion, one hundred eleven billion, one hundred sixty-one million, five hundred seventy-five thousand, two hundred thirteen".