105631343405 has 32 divisors (see below), whose sum is σ = 147571445760. Its totient is φ = 71088114240.

The previous prime is 105631343383. The next prime is 105631343417. The reversal of 105631343405 is 504343136501.

It is not a de Polignac number, because 105631343405 - 2³⁰ = 104557601581 is a prime.

It is a super-2 number, since 2×105631343405² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

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 in 31 ways as a sum of consecutive naturals, for example, 552386 + ... + 718604.

It is an arithmetic number, because the mean of its divisors is an integer number (4611607680).

Almost surely, 2^105631343405 is an apocalyptic number.

It is an amenable number.

105631343405 is a deficient number, since it is larger than the sum of its proper divisors (41940102355).

105631343405 is a wasteful number, since it uses less digits than its factorization.

105631343405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166569.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 105631343405 its reverse (504343136501), we get a palindrome (609974479906).

The spelling of 105631343405 in words is "one hundred five billion, six hundred thirty-one million, three hundred forty-three thousand, four hundred five".