213111212411 has 2 divisors, whose sum is σ = 213111212412. Its totient is φ = 213111212410.

The previous prime is 213111212323. The next prime is 213111212423. The reversal of 213111212411 is 114212111312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213111212411 - 2¹⁴ = 213111196027 is a prime.

It is not a weakly prime, because it can be changed into another prime (213111212011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106555606205 + 106555606206.

It is an arithmetic number, because the mean of its divisors is an integer number (106555606206).

Almost surely, 2^213111212411 is an apocalyptic number.

213111212411 is a deficient number, since it is larger than the sum of its proper divisors (1).

213111212411 is an equidigital number, since it uses as much as digits as its factorization.

213111212411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 20.

Adding to 213111212411 its reverse (114212111312), we get a palindrome (327323323723).

The spelling of 213111212411 in words is "two hundred thirteen billion, one hundred eleven million, two hundred twelve thousand, four hundred eleven".