211413311155 has 8 divisors (see below), whose sum is σ = 253701757584. Its totient is φ = 169126792800.

The previous prime is 211413311117. The next prime is 211413311203. The reversal of 211413311155 is 551113314112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211413311155 - 2¹⁹ = 211412786867 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228681 + ... + 689290.

It is an arithmetic number, because the mean of its divisors is an integer number (31712719698).

Almost surely, 2^211413311155 is an apocalyptic number.

211413311155 is a deficient number, since it is larger than the sum of its proper divisors (42288446429).

211413311155 is an equidigital number, since it uses as much as digits as its factorization.

211413311155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964037.

The product of its digits is 1800, while the sum is 28.

Adding to 211413311155 its reverse (551113314112), we get a palindrome (762526625267).

The spelling of 211413311155 in words is "two hundred eleven billion, four hundred thirteen million, three hundred eleven thousand, one hundred fifty-five".