211203210131 has 8 divisors (see below), whose sum is σ = 224629743744. Its totient is φ = 197888100480.

The previous prime is 211203210089. The next prime is 211203210191. The reversal of 211203210131 is 131012302112.

211203210131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211203210131 is a prime.

It is a super-2 number, since 2×211203210131² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211203210191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27852080 + ... + 27859661.

It is an arithmetic number, because the mean of its divisors is an integer number (28078717968).

Almost surely, 2^211203210131 is an apocalyptic number.

211203210131 is a deficient number, since it is larger than the sum of its proper divisors (13426533613).

211203210131 is a wasteful number, since it uses less digits than its factorization.

211203210131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55711981.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211203210131 its reverse (131012302112), we get a palindrome (342215512243).

The spelling of 211203210131 in words is "two hundred eleven billion, two hundred three million, two hundred ten thousand, one hundred thirty-one".