105312143235 has 64 divisors (see below), whose sum is σ = 198760625280. Its totient is φ = 47113543680.

The previous prime is 105312143231. The next prime is 105312143243. The reversal of 105312143235 is 532341213501.

It is not a de Polignac number, because 105312143235 - 2² = 105312143231 is a prime.

It is a super-2 number, since 2×105312143235² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105312143231) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 451596 + ... + 643865.

It is an arithmetic number, because the mean of its divisors is an integer number (3105634770).

Almost surely, 2^105312143235 is an apocalyptic number.

105312143235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105312143235 is a deficient number, since it is larger than the sum of its proper divisors (93448482045).

105312143235 is a wasteful number, since it uses less digits than its factorization.

105312143235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095528.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 105312143235 its reverse (532341213501), we get a palindrome (637653356736).

The spelling of 105312143235 in words is "one hundred five billion, three hundred twelve million, one hundred forty-three thousand, two hundred thirty-five".