1204230343021 has 4 divisors (see below), whose sum is σ = 1233601814844. Its totient is φ = 1174858871200.

The previous prime is 1204230342971. The next prime is 1204230343027. The reversal of 1204230343021 is 1203430324021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188257060996 + 1015973282025 = 433886^2 + 1007955^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204230343021 - 2³⁷ = 1066791389549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204230343027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14685735850 + ... + 14685735931.

It is an arithmetic number, because the mean of its divisors is an integer number (308400453711).

Almost surely, 2^{1204230343021} is an apocalyptic number.

It is an amenable number.

1204230343021 is a deficient number, since it is larger than the sum of its proper divisors (29371471823).

1204230343021 is an equidigital number, since it uses as much as digits as its factorization.

1204230343021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29371471822.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1204230343021 its reverse (1203430324021), we get a palindrome (2407660667042).

The spelling of 1204230343021 in words is "one trillion, two hundred four billion, two hundred thirty million, three hundred forty-three thousand, twenty-one".