105821343512 has 8 divisors (see below), whose sum is σ = 198415019100. Its totient is φ = 52910671752.

The previous prime is 105821343499. The next prime is 105821343527. The reversal of 105821343512 is 215343128501.

105821343512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×105821343512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6613833962 + ... + 6613833977.

Almost surely, 2^105821343512 is an apocalyptic number.

It is an amenable number.

105821343512 is a deficient number, since it is larger than the sum of its proper divisors (92593675588).

105821343512 is a wasteful number, since it uses less digits than its factorization.

105821343512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13227667945 (or 13227667941 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 105821343512 in words is "one hundred five billion, eight hundred twenty-one million, three hundred forty-three thousand, five hundred twelve".