211210203320031 has 4 divisors (see below), whose sum is σ = 281613604426712. Its totient is φ = 140806802213352.

The previous prime is 211210203319987. The next prime is 211210203320041. The reversal of 211210203320031 is 130023302012112.

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

It is not a de Polignac number, because 211210203320031 - 2¹⁴ = 211210203303647 is a prime.

It is a super-2 number, since 2×211210203320031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210203320041) 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, 35201700553336 + ... + 35201700553341.

It is an arithmetic number, because the mean of its divisors is an integer number (70403401106678).

Almost surely, 2^{211210203320031} is an apocalyptic number.

211210203320031 is a deficient number, since it is larger than the sum of its proper divisors (70403401106681).

211210203320031 is an equidigital number, since it uses as much as digits as its factorization.

211210203320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70403401106680.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211210203320031 its reverse (130023302012112), we get a palindrome (341233505332143).

The spelling of 211210203320031 in words is "two hundred eleven trillion, two hundred ten billion, two hundred three million, three hundred twenty thousand, thirty-one".