211434111311 has 8 divisors (see below), whose sum is σ = 216054310080. Its totient is φ = 206818979328.

The previous prime is 211434111307. The next prime is 211434111377. The reversal of 211434111311 is 113111434112.

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 211434111311 - 2² = 211434111307 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 (211434119311) 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, 1182266 + ... + 1349303.

It is an arithmetic number, because the mean of its divisors is an integer number (27006788760).

Almost surely, 2^211434111311 is an apocalyptic number.

211434111311 is a deficient number, since it is larger than the sum of its proper divisors (4620198769).

211434111311 is a wasteful number, since it uses less digits than its factorization.

211434111311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533393.

The product of its digits is 288, while the sum is 23.

Adding to 211434111311 its reverse (113111434112), we get a palindrome (324545545423).

The spelling of 211434111311 in words is "two hundred eleven billion, four hundred thirty-four million, one hundred eleven thousand, three hundred eleven".