211021120000231 has 2 divisors, whose sum is σ = 211021120000232. Its totient is φ = 211021120000230.

The previous prime is 211021120000217. The next prime is 211021120000259. The reversal of 211021120000231 is 132000021120112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211021120000231 is a prime.

It is a super-2 number, since 2×211021120000231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211021120000261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510560000115 + 105510560000116.

It is an arithmetic number, because the mean of its divisors is an integer number (105510560000116).

Almost surely, 2^{211021120000231} is an apocalyptic number.

211021120000231 is a deficient number, since it is larger than the sum of its proper divisors (1).

211021120000231 is an equidigital number, since it uses as much as digits as its factorization.

211021120000231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211021120000231 its reverse (132000021120112), we get a palindrome (343021141120343).

The spelling of 211021120000231 in words is "two hundred eleven trillion, twenty-one billion, one hundred twenty million, two hundred thirty-one", and thus it is an aban number.