211240231333 has 2 divisors, whose sum is σ = 211240231334. Its totient is φ = 211240231332.

The previous prime is 211240231289. The next prime is 211240231343. The reversal of 211240231333 is 333132042112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208197826369 + 3042404964 = 456287^2 + 55158^2 .

It is a cyclic number.

It is not a de Polignac number, because 211240231333 - 2¹⁷ = 211240100261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211240231298 and 211240231307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211240231343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105620115666 + 105620115667.

It is an arithmetic number, because the mean of its divisors is an integer number (105620115667).

Almost surely, 2^211240231333 is an apocalyptic number.

It is an amenable number.

211240231333 is a deficient number, since it is larger than the sum of its proper divisors (1).

211240231333 is an equidigital number, since it uses as much as digits as its factorization.

211240231333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 211240231333 its reverse (333132042112), we get a palindrome (544372273445).

The spelling of 211240231333 in words is "two hundred eleven billion, two hundred forty million, two hundred thirty-one thousand, three hundred thirty-three".