1204131143 has 2 divisors, whose sum is σ = 1204131144. Its totient is φ = 1204131142.

The previous prime is 1204131139. The next prime is 1204131151. The reversal of 1204131143 is 3411314021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1204131143 - 2² = 1204131139 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204131113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602065571 + 602065572.

It is an arithmetic number, because the mean of its divisors is an integer number (602065572).

Almost surely, 2^1204131143 is an apocalyptic number.

1204131143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204131143 is an equidigital number, since it uses as much as digits as its factorization.

1204131143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1204131143 is about 34700.5928335526. The cubic root of 1204131143 is about 1063.8766154130.

Adding to 1204131143 its reverse (3411314021), we get a palindrome (4615445164).

The spelling of 1204131143 in words is "one billion, two hundred four million, one hundred thirty-one thousand, one hundred forty-three".