105414412021 has 4 divisors (see below), whose sum is σ = 105415715500. Its totient is φ = 105413108544.

The previous prime is 105414412009. The next prime is 105414412027. The reversal of 105414412021 is 120214414501.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52704680625 + 52709731396 = 229575^2 + 229586^2 .

It is a cyclic number.

It is not a de Polignac number, because 105414412021 - 2¹⁷ = 105414280949 is a prime.

It is a super-2 number, since 2×105414412021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105414412027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521796 + ... + 695053.

It is an arithmetic number, because the mean of its divisors is an integer number (26353928875).

Almost surely, 2^105414412021 is an apocalyptic number.

It is an amenable number.

105414412021 is a deficient number, since it is larger than the sum of its proper divisors (1303479).

105414412021 is an equidigital number, since it uses as much as digits as its factorization.

105414412021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303478.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 105414412021 its reverse (120214414501), we get a palindrome (225628826522).

The spelling of 105414412021 in words is "one hundred five billion, four hundred fourteen million, four hundred twelve thousand, twenty-one".