11155368612213 has 12 divisors (see below), whose sum is σ = 18415211677408. Its totient is φ = 6374496349800.

The previous prime is 11155368612209. The next prime is 11155368612221. The reversal of 11155368612213 is 31221686355111.

11155368612213 is a `hidden beast` number, since 1 + 1 + 1 + 5 + 5 + 3 + 6 + 8 + 612 + 21 + 3 = 666.

It is not a de Polignac number, because 11155368612213 - 2² = 11155368612209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155368612293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88534671463 + ... + 88534671588.

Almost surely, 2^{11155368612213} is an apocalyptic number.

It is an amenable number.

11155368612213 is a deficient number, since it is larger than the sum of its proper divisors (7259843065195).

11155368612213 is a wasteful number, since it uses less digits than its factorization.

11155368612213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177069343064 (or 177069343061 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The spelling of 11155368612213 in words is "eleven trillion, one hundred fifty-five billion, three hundred sixty-eight million, six hundred twelve thousand, two hundred thirteen".