1204513656019 has 2 divisors, whose sum is σ = 1204513656020. Its totient is φ = 1204513656018.

The previous prime is 1204513655993. The next prime is 1204513656091. The reversal of 1204513656019 is 9106563154021.

Together with next prime (1204513656091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1204513656019 - 2¹⁷ = 1204513524947 is a prime.

It is a super-2 number, since 2×1204513656019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1204513696019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602256828009 + 602256828010.

It is an arithmetic number, because the mean of its divisors is an integer number (602256828010).

Almost surely, 2^{1204513656019} is an apocalyptic number.

1204513656019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204513656019 is an equidigital number, since it uses as much as digits as its factorization.

1204513656019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 1204513656019 in words is "one trillion, two hundred four billion, five hundred thirteen million, six hundred fifty-six thousand, nineteen".