10881209911 has 16 divisors (see below), whose sum is σ = 12786883200. Its totient is φ = 9128682720.

The previous prime is 10881209903. The next prime is 10881209923. The reversal of 10881209911 is 11990218801.

It is a cyclic number.

It is not a de Polignac number, because 10881209911 - 2³ = 10881209903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10881209981) 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, 721696 + ... + 736618.

It is an arithmetic number, because the mean of its divisors is an integer number (799180200).

Almost surely, 2^10881209911 is an apocalyptic number.

10881209911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10881209911 is a deficient number, since it is larger than the sum of its proper divisors (1905673289).

10881209911 is a wasteful number, since it uses less digits than its factorization.

10881209911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20046.

The product of its (nonzero) digits is 10368, while the sum is 40.

The spelling of 10881209911 in words is "ten billion, eight hundred eighty-one million, two hundred nine thousand, nine hundred eleven".