211331342311 has 8 divisors (see below), whose sum is σ = 212041784448. Its totient is φ = 210621099000.

The previous prime is 211331342281. The next prime is 211331342317. The reversal of 211331342311 is 113243133112.

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

It is a cyclic number.

It is not a de Polignac number, because 211331342311 - 2²⁵ = 211297787879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211331342317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2258976 + ... + 2350666.

It is an arithmetic number, because the mean of its divisors is an integer number (26505223056).

Almost surely, 2^211331342311 is an apocalyptic number.

211331342311 is a deficient number, since it is larger than the sum of its proper divisors (710442137).

211331342311 is an equidigital number, since it uses as much as digits as its factorization.

211331342311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99413.

The product of its digits is 1296, while the sum is 25.

Adding to 211331342311 its reverse (113243133112), we get a palindrome (324574475423).

The spelling of 211331342311 in words is "two hundred eleven billion, three hundred thirty-one million, three hundred forty-two thousand, three hundred eleven".