1005143254312 has 8 divisors (see below), whose sum is σ = 1884643601850. Its totient is φ = 502571627152.

The previous prime is 1005143254261. The next prime is 1005143254319. The reversal of 1005143254312 is 2134523415001.

It can be written as a sum of positive squares in only one way, i.e., 795153857796 + 209989396516 = 891714^2 + 458246^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1005143254319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62821453387 + ... + 62821453402.

Almost surely, 2^{1005143254312} is an apocalyptic number.

It is an amenable number.

1005143254312 is a deficient number, since it is larger than the sum of its proper divisors (879500347538).

1005143254312 is a wasteful number, since it uses less digits than its factorization.

1005143254312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125642906795 (or 125642906791 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 1005143254312 its reverse (2134523415001), we get a palindrome (3139666669313).

The spelling of 1005143254312 in words is "one trillion, five billion, one hundred forty-three million, two hundred fifty-four thousand, three hundred twelve".