105831285380831 has 4 divisors (see below), whose sum is σ = 105831499011000. Its totient is φ = 105831071750664.

The previous prime is 105831285380803. The next prime is 105831285380851. The reversal of 105831285380831 is 138083582138501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105831285380831 is a prime.

It is a super-2 number, since 2×105831285380831² (a number of 29 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 (105831285380851) 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, 106070261 + ... + 107063358.

It is an arithmetic number, because the mean of its divisors is an integer number (26457874752750).

Almost surely, 2^{105831285380831} is an apocalyptic number.

105831285380831 is a deficient number, since it is larger than the sum of its proper divisors (213630169).

105831285380831 is an equidigital number, since it uses as much as digits as its factorization.

105831285380831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213630168.

The product of its (nonzero) digits is 5529600, while the sum is 56.

The spelling of 105831285380831 in words is "one hundred five trillion, eight hundred thirty-one billion, two hundred eighty-five million, three hundred eighty thousand, eight hundred thirty-one".