211332103309 has 2 divisors, whose sum is σ = 211332103310. Its totient is φ = 211332103308.

The previous prime is 211332103259. The next prime is 211332103319. The reversal of 211332103309 is 903301233112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197622035209 + 13710068100 = 444547^2 + 117090^2 .

It is a cyclic number.

It is not a de Polignac number, because 211332103309 - 2²⁹ = 210795232397 is a prime.

It is a super-2 number, since 2×211332103309² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211332103319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105666051654 + 105666051655.

It is an arithmetic number, because the mean of its divisors is an integer number (105666051655).

Almost surely, 2^211332103309 is an apocalyptic number.

It is an amenable number.

211332103309 is a deficient number, since it is larger than the sum of its proper divisors (1).

211332103309 is an equidigital number, since it uses as much as digits as its factorization.

211332103309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 211332103309 in words is "two hundred eleven billion, three hundred thirty-two million, one hundred three thousand, three hundred nine".