11771613113 has 8 divisors (see below), whose sum is σ = 12682881288. Its totient is φ = 10861167744.

The previous prime is 11771613103. The next prime is 11771613121. The reversal of 11771613113 is 31131617711.

It can be written as a sum of positive squares in 4 ways, for example, as 2906072464 + 8865540649 = 53908^2 + 94157^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11771613113 - 2¹⁴ = 11771596729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11771613113.

It is not an unprimeable number, because it can be changed into a prime (11771613103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175820 + ... + 233357.

It is an arithmetic number, because the mean of its divisors is an integer number (1585360161).

Almost surely, 2^11771613113 is an apocalyptic number.

11771613113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11771613113 is a deficient number, since it is larger than the sum of its proper divisors (911268175).

11771613113 is a wasteful number, since it uses less digits than its factorization.

11771613113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411403.

The product of its digits is 2646, while the sum is 32.

The spelling of 11771613113 in words is "eleven billion, seven hundred seventy-one million, six hundred thirteen thousand, one hundred thirteen".