2131200004 has 6 divisors (see below), whose sum is σ = 3729600014. Its totient is φ = 1065600000.

The previous prime is 2131199989. The next prime is 2131200011. The reversal of 2131200004 is 4000021312.

It can be written as a sum of positive squares in only one way, i.e., 2106993604 + 24206400 = 45902^2 + 4920^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266399997 + ... + 266400004.

Almost surely, 2^2131200004 is an apocalyptic number.

It is an amenable number.

2131200004 is a deficient number, since it is larger than the sum of its proper divisors (1598400010).

2131200004 is a wasteful number, since it uses less digits than its factorization.

2131200004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532800005 (or 532800003 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2131200004 is about 46164.9217913342. The cubic root of 2131200004 is about 1286.8899307711.

Adding to 2131200004 its reverse (4000021312), we get a palindrome (6131221316).

The spelling of 2131200004 in words is "two billion, one hundred thirty-one million, two hundred thousand, four".