110001321 has 20 divisors (see below), whose sum is σ = 169992900. Its totient is φ = 70803936.

The previous prime is 110001313. The next prime is 110001329. The reversal of 110001321 is 123100011.

It is an interprime number because it is at equal distance from previous prime (110001313) and next prime (110001329).

It can be written as a sum of positive squares in 2 ways, for example, as 29648025 + 80353296 = 5445^2 + 8964^2 .

It is not a de Polignac number, because 110001321 - 2³ = 110001313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (110001329) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21066 + ... + 25763.

It is an arithmetic number, because the mean of its divisors is an integer number (8499645).

Almost surely, 2^110001321 is an apocalyptic number.

It is an amenable number.

110001321 is a deficient number, since it is larger than the sum of its proper divisors (59991579).

110001321 is an equidigital number, since it uses as much as digits as its factorization.

110001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46870 (or 46861 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 110001321 is about 10488.1514577165. The cubic root of 110001321 is about 479.1439037185.

Adding to 110001321 its reverse (123100011), we get a palindrome (233101332).

It can be divided in two parts, 11000 and 1321, that added together give a palindrome (12321).

The spelling of 110001321 in words is "one hundred ten million, one thousand, three hundred twenty-one".