1204404402137 has 2 divisors, whose sum is σ = 1204404402138. Its totient is φ = 1204404402136.

The previous prime is 1204404402067. The next prime is 1204404402199. The reversal of 1204404402137 is 7312044044021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1150773253081 + 53631149056 = 1072741^2 + 231584^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204404402137 - 2¹⁰ = 1204404401113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1204404402937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602202201068 + 602202201069.

It is an arithmetic number, because the mean of its divisors is an integer number (602202201069).

Almost surely, 2^{1204404402137} is an apocalyptic number.

It is an amenable number.

1204404402137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204404402137 is an equidigital number, since it uses as much as digits as its factorization.

1204404402137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 32.

Adding to 1204404402137 its reverse (7312044044021), we get a palindrome (8516448446158).

The spelling of 1204404402137 in words is "one trillion, two hundred four billion, four hundred four million, four hundred two thousand, one hundred thirty-seven".