11109804209712 has 180 divisors, whose sum is σ = 33734662874640. Its totient is φ = 3411601509888.

The previous prime is 11109804209683. The next prime is 11109804209767. The reversal of 11109804209712 is 21790240890111.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11787214 + ... + 12694802.

It is an arithmetic number, because the mean of its divisors is an integer number (187414793748).

Almost surely, 2^{11109804209712} is an apocalyptic number.

11109804209712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11109804209712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16867331437320).

11109804209712 is an abundant number, since it is smaller than the sum of its proper divisors (22624858664928).

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

11109804209712 is a wasteful number, since it uses less digits than its factorization.

11109804209712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908132 (or 908110 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The spelling of 11109804209712 in words is "eleven trillion, one hundred nine billion, eight hundred four million, two hundred nine thousand, seven hundred twelve".