1204203204203 has 4 divisors (see below), whose sum is σ = 1204248343968. Its totient is φ = 1204158064440.

The previous prime is 1204203204161. The next prime is 1204203204221. The reversal of 1204203204203 is 3024023024021.

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

It is a cyclic number.

It is not a de Polignac number, because 1204203204203 - 2²⁶ = 1204136095339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204203204263) 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, 22529843 + ... + 22583228.

It is an arithmetic number, because the mean of its divisors is an integer number (301062085992).

Almost surely, 2^{1204203204203} is an apocalyptic number.

1204203204203 is a deficient number, since it is larger than the sum of its proper divisors (45139765).

1204203204203 is an equidigital number, since it uses as much as digits as its factorization.

1204203204203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45139764.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 1204203204203 its reverse (3024023024021), we get a palindrome (4228226228224).

The spelling of 1204203204203 in words is "one trillion, two hundred four billion, two hundred three million, two hundred four thousand, two hundred three".