211231355371 has 2 divisors, whose sum is σ = 211231355372. Its totient is φ = 211231355370.

The previous prime is 211231355353. The next prime is 211231355411. The reversal of 211231355371 is 173553132112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211231355371 - 2¹⁷ = 211231224299 is a prime.

It is not a weakly prime, because it can be changed into another prime (211231355351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105615677685 + 105615677686.

It is an arithmetic number, because the mean of its divisors is an integer number (105615677686).

Almost surely, 2^211231355371 is an apocalyptic number.

211231355371 is a deficient number, since it is larger than the sum of its proper divisors (1).

211231355371 is an equidigital number, since it uses as much as digits as its factorization.

211231355371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 34.

Adding to 211231355371 its reverse (173553132112), we get a palindrome (384784487483).

The spelling of 211231355371 in words is "two hundred eleven billion, two hundred thirty-one million, three hundred fifty-five thousand, three hundred seventy-one".