211242323411 has 4 divisors (see below), whose sum is σ = 241419798192. Its totient is φ = 181064848632.

The previous prime is 211242323401. The next prime is 211242323443. The reversal of 211242323411 is 114323242112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211242323411 - 2¹⁰ = 211242322387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211242323401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15088737380 + ... + 15088737393.

It is an arithmetic number, because the mean of its divisors is an integer number (60354949548).

Almost surely, 2^211242323411 is an apocalyptic number.

211242323411 is a deficient number, since it is larger than the sum of its proper divisors (30177474781).

211242323411 is an equidigital number, since it uses as much as digits as its factorization.

211242323411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30177474780.

The product of its digits is 2304, while the sum is 26.

Adding to 211242323411 its reverse (114323242112), we get a palindrome (325565565523).

The spelling of 211242323411 in words is "two hundred eleven billion, two hundred forty-two million, three hundred twenty-three thousand, four hundred eleven".