109808181121 has 8 divisors (see below), whose sum is σ = 113362241024. Its totient is φ = 106254862560.

The previous prime is 109808181101. The next prime is 109808181127. The reversal of 109808181121 is 121181808901.

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

It is a cyclic number.

It is not a de Polignac number, because 109808181121 - 2²¹ = 109806083969 is a prime.

It is a super-2 number, since 2×109808181121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109808181127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123916 + ... + 484738.

It is an arithmetic number, because the mean of its divisors is an integer number (14170280128).

Almost surely, 2^109808181121 is an apocalyptic number.

It is an amenable number.

109808181121 is a deficient number, since it is larger than the sum of its proper divisors (3554059903).

109808181121 is an equidigital number, since it uses as much as digits as its factorization.

109808181121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370671.

The product of its (nonzero) digits is 9216, while the sum is 40.

The spelling of 109808181121 in words is "one hundred nine billion, eight hundred eight million, one hundred eighty-one thousand, one hundred twenty-one".