2143230042004 has 12 divisors (see below), whose sum is σ = 3971279195604. Its totient is φ = 1008578843264.

The previous prime is 2143230042001. The next prime is 2143230042013. The reversal of 2143230042004 is 4002400323412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 894155577604 + 1249074464400 = 945598^2 + 1117620^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2143230042004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143230042001) 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, 15759044359 + ... + 15759044494.

It is an arithmetic number, because the mean of its divisors is an integer number (330939932967).

Almost surely, 2^{2143230042004} is an apocalyptic number.

It is an amenable number.

2143230042004 is a deficient number, since it is larger than the sum of its proper divisors (1828049153600).

2143230042004 is a wasteful number, since it uses less digits than its factorization.

2143230042004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31518088874 (or 31518088872 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 2143230042004 its reverse (4002400323412), we get a palindrome (6145630365416).

The spelling of 2143230042004 in words is "two trillion, one hundred forty-three billion, two hundred thirty million, forty-two thousand, four".