1005143123412 has 36 divisors (see below), whose sum is σ = 2541144191040. Its totient is φ = 334999478352.

The previous prime is 1005143123401. The next prime is 1005143123437. The reversal of 1005143123412 is 2143213415001.

1005143123412 is a `hidden beast` number, since 1 + 0 + 0 + 5 + 1 + 4 + 312 + 341 + 2 = 666.

1005143123412 is digitally balanced in base 2 and base 4, because in such bases 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 (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1755558 + ... + 2256605.

It is an arithmetic number, because the mean of its divisors is an integer number (70587338640).

Almost surely, 2^{1005143123412} is an apocalyptic number.

1005143123412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1005143123412 is an abundant number, since it is smaller than the sum of its proper divisors (1536001067628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1005143123412 is a wasteful number, since it uses less digits than its factorization.

1005143123412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019132 (or 4019127 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1005143123412 its reverse (2143213415001), we get a palindrome (3148356538413).

The spelling of 1005143123412 in words is "one trillion, five billion, one hundred forty-three million, one hundred twenty-three thousand, four hundred twelve".