105143042234 has 8 divisors (see below), whose sum is σ = 163152996660. Its totient is φ = 50758710016.

The previous prime is 105143042197. The next prime is 105143042239. The reversal of 105143042234 is 432240341501.

It can be written as a sum of positive squares in 2 ways, for example, as 99682275625 + 5460766609 = 315725^2 + 73897^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×105143042234² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 105143042197 and 105143042206.

It is not an unprimeable number, because it can be changed into a prime (105143042239) 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, 906405479 + ... + 906405594.

Almost surely, 2^105143042234 is an apocalyptic number.

105143042234 is a deficient number, since it is larger than the sum of its proper divisors (58009954426).

105143042234 is a wasteful number, since it uses less digits than its factorization.

105143042234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812811104.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 105143042234 its reverse (432240341501), we get a palindrome (537383383735).

The spelling of 105143042234 in words is "one hundred five billion, one hundred forty-three million, forty-two thousand, two hundred thirty-four".