200420310031 has 4 divisors (see below), whose sum is σ = 200421459864. Its totient is φ = 200419160200.

The previous prime is 200420310001. The next prime is 200420310043. The reversal of 200420310031 is 130013024002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 200420310031 - 2⁹ = 200420309519 is a prime.

It is a super-3 number, since 3×200420310031³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200420309987 and 200420310014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200420310001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253600 + ... + 682021.

It is an arithmetic number, because the mean of its divisors is an integer number (50105364966).

Almost surely, 2^200420310031 is an apocalyptic number.

200420310031 is a deficient number, since it is larger than the sum of its proper divisors (1149833).

200420310031 is an equidigital number, since it uses as much as digits as its factorization.

200420310031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149832.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 200420310031 its reverse (130013024002), we get a palindrome (330433334033).

The spelling of 200420310031 in words is "two hundred billion, four hundred twenty million, three hundred ten thousand, thirty-one".