1219966804603 has 2 divisors, whose sum is σ = 1219966804604. Its totient is φ = 1219966804602.

The previous prime is 1219966804583. The next prime is 1219966804691. The reversal of 1219966804603 is 3064086699121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1219966804603 - 2⁵ = 1219966804571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1219966804403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609983402301 + 609983402302.

It is an arithmetic number, because the mean of its divisors is an integer number (609983402302).

Almost surely, 2^{1219966804603} is an apocalyptic number.

1219966804603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219966804603 is an equidigital number, since it uses as much as digits as its factorization.

1219966804603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 1219966804603 in words is "one trillion, two hundred nineteen billion, nine hundred sixty-six million, eight hundred four thousand, six hundred three".