109800112321 has 9 divisors (see below), whose sum is σ = 114789559521. Its totient is φ = 105018904452.

The previous prime is 109800112313. The next prime is 109800112343. The reversal of 109800112321 is 123211008901.

The square root of 109800112321 is 331361.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 109800112321 - 2³ = 109800112313 is a prime.

It is a super-3 number, since 3×109800112321³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109800112321.

It is not an unprimeable number, because it can be changed into a prime (109801112321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7614100 + ... + 7628506.

Almost surely, 2^109800112321 is an apocalyptic number.

109800112321 is the 331361-st square number.

109800112321 is the 165681-st centered octagonal number.

It is an amenable number.

109800112321 is a deficient number, since it is larger than the sum of its proper divisors (4989447200).

109800112321 is an frugal number, since it uses more digits than its factorization.

109800112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28860 (or 14430 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 109800112321 in words is "one hundred nine billion, eight hundred million, one hundred twelve thousand, three hundred twenty-one".