211101011213 has 2 divisors, whose sum is σ = 211101011214. Its totient is φ = 211101011212.

The previous prime is 211101011201. The next prime is 211101011263. The reversal of 211101011213 is 312110101112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131169281929 + 79931729284 = 362173^2 + 282722^2 .

It is a cyclic number.

It is not a de Polignac number, because 211101011213 - 2¹⁰ = 211101010189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211101011263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105550505606 + 105550505607.

It is an arithmetic number, because the mean of its divisors is an integer number (105550505607).

Almost surely, 2^211101011213 is an apocalyptic number.

It is an amenable number.

211101011213 is a deficient number, since it is larger than the sum of its proper divisors (1).

211101011213 is an equidigital number, since it uses as much as digits as its factorization.

211101011213 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 14.

Adding to 211101011213 its reverse (312110101112), we get a palindrome (523211112325).

The spelling of 211101011213 in words is "two hundred eleven billion, one hundred one million, eleven thousand, two hundred thirteen".