11771000001 has 16 divisors (see below), whose sum is σ = 17863849920. Its totient is φ = 7655934240.

The previous prime is 11770999997. The next prime is 11771000009. The reversal of 11771000001 is 10000017711.

It is not a de Polignac number, because 11771000001 - 2² = 11770999997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11771000009) 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, 5315515 + ... + 5317728.

It is an arithmetic number, because the mean of its divisors is an integer number (1116490620).

Almost surely, 2^11771000001 is an apocalyptic number.

It is an amenable number.

11771000001 is a deficient number, since it is larger than the sum of its proper divisors (6092849919).

11771000001 is a wasteful number, since it uses less digits than its factorization.

11771000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10633293 (or 10633287 counting only the distinct ones).

The product of its (nonzero) digits is 49, while the sum is 18.

Adding to 11771000001 its reverse (10000017711), we get a palindrome (21771017712).

The spelling of 11771000001 in words is "eleven billion, seven hundred seventy-one million, one", and thus it is an aban number.