105331056681 has 4 divisors (see below), whose sum is σ = 140441408912. Its totient is φ = 70220704452.

The previous prime is 105331056647. The next prime is 105331056689. The reversal of 105331056681 is 186650133501.

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.

It is not a de Polignac number, because 105331056681 - 2⁷ = 105331056553 is a prime.

It is a super-2 number, since 2×105331056681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105331056689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17555176111 + ... + 17555176116.

It is an arithmetic number, because the mean of its divisors is an integer number (35110352228).

Almost surely, 2^105331056681 is an apocalyptic number.

It is an amenable number.

105331056681 is a deficient number, since it is larger than the sum of its proper divisors (35110352231).

105331056681 is an equidigital number, since it uses as much as digits as its factorization.

105331056681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35110352230.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 105331056681 in words is "one hundred five billion, three hundred thirty-one million, fifty-six thousand, six hundred eighty-one".