2143120004 has 6 divisors (see below), whose sum is σ = 3750460014. Its totient is φ = 1071560000.

The previous prime is 2143120003. The next prime is 2143120051. The reversal of 2143120004 is 4000213412.

It can be written as a sum of positive squares in only one way, i.e., 1628283904 + 514836100 = 40352^2 + 22690^2 .

It is not an unprimeable number, because it can be changed into a prime (2143120003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267889997 + ... + 267890004.

It is an arithmetic number, because the mean of its divisors is an integer number (625076669).

Almost surely, 2^2143120004 is an apocalyptic number.

It is an amenable number.

2143120004 is a deficient number, since it is larger than the sum of its proper divisors (1607340010).

2143120004 is a wasteful number, since it uses less digits than its factorization.

2143120004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535780005 (or 535780003 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2143120004 is about 46293.8441264063. The cubic root of 2143120004 is about 1289.2847032997.

Adding to 2143120004 its reverse (4000213412), we get a palindrome (6143333416).

The spelling of 2143120004 in words is "two billion, one hundred forty-three million, one hundred twenty thousand, four".