999204131203 has 4 divisors (see below), whose sum is σ = 1003185024408. Its totient is φ = 995223238000.

The previous prime is 999204131089. The next prime is 999204131221. The reversal of 999204131203 is 302131402999.

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 999204131203 - 2¹³ = 999204123011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 999204131203.

It is not an unprimeable number, because it can be changed into a prime (999204131903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1990446226 + ... + 1990446727.

It is an arithmetic number, because the mean of its divisors is an integer number (250796256102).

Almost surely, 2^999204131203 is an apocalyptic number.

999204131203 is a deficient number, since it is larger than the sum of its proper divisors (3980893205).

999204131203 is a wasteful number, since it uses less digits than its factorization.

999204131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980893204.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 999204131203 in words is "nine hundred ninety-nine billion, two hundred four million, one hundred thirty-one thousand, two hundred three".