211203322031 has 6 divisors (see below), whose sum is σ = 228699455400. Its totient is φ = 194956912488.

The previous prime is 211203322019. The next prime is 211203322039. The reversal of 211203322031 is 130223302112.

It is not a de Polignac number, because 211203322031 - 2¹⁸ = 211203059887 is a prime.

It is a super-2 number, since 2×211203322031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211203321994 and 211203322012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211203322039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 624861731 + ... + 624862068.

It is an arithmetic number, because the mean of its divisors is an integer number (38116575900).

Almost surely, 2^211203322031 is an apocalyptic number.

211203322031 is a deficient number, since it is larger than the sum of its proper divisors (17496133369).

211203322031 is a wasteful number, since it uses less digits than its factorization.

211203322031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249723825 (or 1249723812 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 211203322031 its reverse (130223302112), we get a palindrome (341426624143).

The spelling of 211203322031 in words is "two hundred eleven billion, two hundred three million, three hundred twenty-two thousand, thirty-one".