1204689020369 has 4 divisors (see below), whose sum is σ = 1207162714944. Its totient is φ = 1202215325796.

The previous prime is 1204689020351. The next prime is 1204689020411. The reversal of 1204689020369 is 9630209864021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1204689020369 - 2²⁰ = 1204687971793 is a prime.

It is a super-2 number, since 2×1204689020369² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204689040369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236846557 + ... + 1236847530.

It is an arithmetic number, because the mean of its divisors is an integer number (301790678736).

Almost surely, 2^{1204689020369} is an apocalyptic number.

It is an amenable number.

1204689020369 is a deficient number, since it is larger than the sum of its proper divisors (2473694575).

1204689020369 is an equidigital number, since it uses as much as digits as its factorization.

1204689020369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473694574.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 1204689020369 in words is "one trillion, two hundred four billion, six hundred eighty-nine million, twenty thousand, three hundred sixty-nine".