108911990210 has 8 divisors (see below), whose sum is σ = 196041582396. Its totient is φ = 43564796080.

The previous prime is 108911990207. The next prime is 108911990219. The reversal of 108911990210 is 12099119801.

It can be written as a sum of positive squares in 2 ways, for example, as 102559422001 + 6352568209 = 320249^2 + 79703^2 .

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

It is a super-2 number, since 2×108911990210² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (108911990219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5445599501 + ... + 5445599520.

Almost surely, 2^108911990210 is an apocalyptic number.

108911990210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108911990210 is a deficient number, since it is larger than the sum of its proper divisors (87129592186).

108911990210 is a wasteful number, since it uses less digits than its factorization.

108911990210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10891199028.

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 108911990210 in words is "one hundred eight billion, nine hundred eleven million, nine hundred ninety thousand, two hundred ten".