213111383 has 2 divisors, whose sum is σ = 213111384. Its totient is φ = 213111382.

The previous prime is 213111377. The next prime is 213111407. The reversal of 213111383 is 383111312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213111383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213111323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106555691 + 106555692.

It is an arithmetic number, because the mean of its divisors is an integer number (106555692).

Almost surely, 2^213111383 is an apocalyptic number.

213111383 is a deficient number, since it is larger than the sum of its proper divisors (1).

213111383 is an equidigital number, since it uses as much as digits as its factorization.

213111383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

The square root of 213111383 is about 14598.3349393004. The cubic root of 213111383 is about 597.3133423704.

Adding to 213111383 its reverse (383111312), we get a palindrome (596222695).

The spelling of 213111383 in words is "two hundred thirteen million, one hundred eleven thousand, three hundred eighty-three".