13111186485 has 16 divisors (see below), whose sum is σ = 20990598336. Its totient is φ = 6988399488.

The previous prime is 13111186457. The next prime is 13111186489. The reversal of 13111186485 is 58468111131.

It is a happy number.

It is not a de Polignac number, because 13111186485 - 2⁷ = 13111186357 is a prime.

It is a super-2 number, since 2×13111186485² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111186489) 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, 238899 + ... + 288608.

It is an arithmetic number, because the mean of its divisors is an integer number (1311912396).

Almost surely, 2^13111186485 is an apocalyptic number.

13111186485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13111186485 is a deficient number, since it is larger than the sum of its proper divisors (7879411851).

13111186485 is a wasteful number, since it uses less digits than its factorization.

13111186485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529172.

The product of its digits is 23040, while the sum is 39.

The spelling of 13111186485 in words is "thirteen billion, one hundred eleven million, one hundred eighty-six thousand, four hundred eighty-five".