211012310101 has 2 divisors, whose sum is σ = 211012310102. Its totient is φ = 211012310100.

The previous prime is 211012310099. The next prime is 211012310111. The reversal of 211012310101 is 101013210112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174495011076 + 36517299025 = 417726^2 + 191095^2 .

It is a cyclic number.

It is not a de Polignac number, because 211012310101 - 2¹ = 211012310099 is a prime.

Together with 211012310099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211012310111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105506155050 + 105506155051.

It is an arithmetic number, because the mean of its divisors is an integer number (105506155051).

Almost surely, 2^211012310101 is an apocalyptic number.

It is an amenable number.

211012310101 is a deficient number, since it is larger than the sum of its proper divisors (1).

211012310101 is an equidigital number, since it uses as much as digits as its factorization.

211012310101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 211012310101 its reverse (101013210112), we get a palindrome (312025520213).

The spelling of 211012310101 in words is "two hundred eleven billion, twelve million, three hundred ten thousand, one hundred one".