200021021100031 has 2 divisors, whose sum is σ = 200021021100032. Its totient is φ = 200021021100030.

The previous prime is 200021021099959. The next prime is 200021021100077. The reversal of 200021021100031 is 130001120120002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200021021100031 - 2⁷ = 200021021099903 is a prime.

It is a super-2 number, since 2×200021021100031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200021021099984 and 200021021100020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200021021100091) 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 as a sum of consecutive naturals, namely, 100010510550015 + 100010510550016.

It is an arithmetic number, because the mean of its divisors is an integer number (100010510550016).

Almost surely, 2^{200021021100031} is an apocalyptic number.

200021021100031 is a deficient number, since it is larger than the sum of its proper divisors (1).

200021021100031 is an equidigital number, since it uses as much as digits as its factorization.

200021021100031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 200021021100031 its reverse (130001120120002), we get a palindrome (330022141220033).

The spelling of 200021021100031 in words is "two hundred trillion, twenty-one billion, twenty-one million, one hundred thousand, thirty-one".