105101321 has 4 divisors (see below), whose sum is σ = 113186052. Its totient is φ = 97016592.

The previous prime is 105101309. The next prime is 105101333. The reversal of 105101321 is 123101501.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (105101309) and next prime (105101333).

It can be written as a sum of positive squares in 2 ways, for example, as 44089600 + 61011721 = 6640^2 + 7811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105101321 is a prime.

It is a super-2 number, since 2×105101321² = 22092575351890082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105101296 and 105101305.

It is not an unprimeable number, because it can be changed into a prime (105101341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4042346 + ... + 4042371.

It is an arithmetic number, because the mean of its divisors is an integer number (28296513).

Almost surely, 2^105101321 is an apocalyptic number.

It is an amenable number.

105101321 is a deficient number, since it is larger than the sum of its proper divisors (8084731).

105101321 is an equidigital number, since it uses as much as digits as its factorization.

105101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8084730.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 105101321 is about 10251.8935324163. The cubic root of 105101321 is about 471.9210957469.

Adding to 105101321 its reverse (123101501), we get a palindrome (228202822).

The spelling of 105101321 in words is "one hundred five million, one hundred one thousand, three hundred twenty-one".