211311323134 has 16 divisors (see below), whose sum is σ = 334055900880. Its totient is φ = 99972904320.

The previous prime is 211311323057. The next prime is 211311323137. The reversal of 211311323134 is 431323113112.

It is a junction number, because it is equal to n+sod(n) for n = 211311323099 and 211311323108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211311323137) 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, 3355419 + ... + 3417814.

It is an arithmetic number, because the mean of its divisors is an integer number (20878493805).

Almost surely, 2^211311323134 is an apocalyptic number.

211311323134 is a deficient number, since it is larger than the sum of its proper divisors (122744577746).

211311323134 is a wasteful number, since it uses less digits than its factorization.

211311323134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6774075.

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

Adding to 211311323134 its reverse (431323113112), we get a palindrome (642634436246).

The spelling of 211311323134 in words is "two hundred eleven billion, three hundred eleven million, three hundred twenty-three thousand, one hundred thirty-four".