10891199110 has 48 divisors (see below), whose sum is σ = 22291491600. Its totient is φ = 3823856960.

The previous prime is 10891199083. The next prime is 10891199129. The reversal of 10891199110 is 1199119801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120100 + ... + 190279.

It is an arithmetic number, because the mean of its divisors is an integer number (464406075).

Almost surely, 2^10891199110 is an apocalyptic number.

10891199110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10891199110 is an abundant number, since it is smaller than the sum of its proper divisors (11400292490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10891199110 is a wasteful number, since it uses less digits than its factorization.

10891199110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310437 (or 310426 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 40.

The spelling of 10891199110 in words is "ten billion, eight hundred ninety-one million, one hundred ninety-nine thousand, one hundred ten".