204002000031 has 4 divisors (see below), whose sum is σ = 272002666712. Its totient is φ = 136001333352.

The previous prime is 204002000029. The next prime is 204002000107. The reversal of 204002000031 is 130000200402.

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

It is not a de Polignac number, because 204002000031 - 2¹ = 204002000029 is a prime.

It is a super-2 number, since 2×204002000031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204001999980 and 204002000016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204002000021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34000333336 + ... + 34000333341.

It is an arithmetic number, because the mean of its divisors is an integer number (68000666678).

Almost surely, 2^204002000031 is an apocalyptic number.

204002000031 is a deficient number, since it is larger than the sum of its proper divisors (68000666681).

204002000031 is an equidigital number, since it uses as much as digits as its factorization.

204002000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68000666680.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 204002000031 its reverse (130000200402), we get a palindrome (334002200433).

The spelling of 204002000031 in words is "two hundred four billion, two million, thirty-one", and thus it is an aban number.