110000921 has 4 divisors (see below), whose sum is σ = 110025600. Its totient is φ = 109976244.

The previous prime is 110000903. The next prime is 110000953. The reversal of 110000921 is 129000011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110000921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 110000896 and 110000905.

It is not an unprimeable number, because it can be changed into a prime (110000221) 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, 3581 + ... + 15258.

It is an arithmetic number, because the mean of its divisors is an integer number (27506400).

Almost surely, 2^110000921 is an apocalyptic number.

It is an amenable number.

110000921 is a deficient number, since it is larger than the sum of its proper divisors (24679).

110000921 is an equidigital number, since it uses as much as digits as its factorization.

110000921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24678.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 110000921 is about 10488.1323885618. The cubic root of 110000921 is about 479.1433229443.

Adding to 110000921 its reverse (129000011), we get a palindrome (239000932).

The spelling of 110000921 in words is "one hundred ten million, nine hundred twenty-one", and thus it is an aban number.