105345331405 has 4 divisors (see below), whose sum is σ = 126414397692. Its totient is φ = 84276265120.

The previous prime is 105345331397. The next prime is 105345331411. The reversal of 105345331405 is 504133543501.

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 49201450596 + 56143880809 = 221814^2 + 236947^2 .

It is not a de Polignac number, because 105345331405 - 2³ = 105345331397 is a prime.

It is a super-2 number, since 2×105345331405² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10534533136 + ... + 10534533145.

It is an arithmetic number, because the mean of its divisors is an integer number (31603599423).

Almost surely, 2^105345331405 is an apocalyptic number.

It is an amenable number.

105345331405 is a deficient number, since it is larger than the sum of its proper divisors (21069066287).

105345331405 is an equidigital number, since it uses as much as digits as its factorization.

105345331405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21069066286.

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 105345331405 its reverse (504133543501), we get a palindrome (609478874906).

The spelling of 105345331405 in words is "one hundred five billion, three hundred forty-five million, three hundred thirty-one thousand, four hundred five".