211031413 has 2 divisors, whose sum is σ = 211031414. Its totient is φ = 211031412.

The previous prime is 211031407. The next prime is 211031419. The reversal of 211031413 is 314130112.

It is a balanced prime because it is at equal distance from previous prime (211031407) and next prime (211031419).

It can be written as a sum of positive squares in only one way, i.e., 172318129 + 38713284 = 13127^2 + 6222^2 .

It is a cyclic number.

It is not a de Polignac number, because 211031413 - 2⁹ = 211030901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211031419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105515706 + 105515707.

It is an arithmetic number, because the mean of its divisors is an integer number (105515707).

Almost surely, 2^211031413 is an apocalyptic number.

It is an amenable number.

211031413 is a deficient number, since it is larger than the sum of its proper divisors (1).

211031413 is an equidigital number, since it uses as much as digits as its factorization.

211031413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 211031413 is about 14526.9202861446. The cubic root of 211031413 is about 595.3637236593.

Adding to 211031413 its reverse (314130112), we get a palindrome (525161525).

The spelling of 211031413 in words is "two hundred eleven million, thirty-one thousand, four hundred thirteen".