105113321 has 4 divisors (see below), whose sum is σ = 105758352. Its totient is φ = 104468292.

The previous prime is 105113311. The next prime is 105113341. The reversal of 105113321 is 123311501.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123311501 = 19 ⋅6490079.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105113321 is a prime.

It is a super-2 number, since 2×105113321² = 22097620503298082, which contains 22 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 105113321.

It is not an unprimeable number, because it can be changed into a prime (105113311) 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, 322271 + ... + 322596.

It is an arithmetic number, because the mean of its divisors is an integer number (26439588).

Almost surely, 2^105113321 is an apocalyptic number.

It is an amenable number.

105113321 is a deficient number, since it is larger than the sum of its proper divisors (645031).

105113321 is an equidigital number, since it uses as much as digits as its factorization.

105113321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645030.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 105113321 is about 10252.4787734479. The cubic root of 105113321 is about 471.9390556786.

Adding to 105113321 its reverse (123311501), we get a palindrome (228424822).

The spelling of 105113321 in words is "one hundred five million, one hundred thirteen thousand, three hundred twenty-one".