211311231313 has 8 divisors (see below), whose sum is σ = 260075361728. Its totient is φ = 167191303824.

The previous prime is 211311231253. The next prime is 211311231319. The reversal of 211311231313 is 313132113112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211311231313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211311231319) 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, 1161050631 + ... + 1161050812.

It is an arithmetic number, because the mean of its divisors is an integer number (32509420216).

Almost surely, 2^211311231313 is an apocalyptic number.

It is an amenable number.

211311231313 is a deficient number, since it is larger than the sum of its proper divisors (48764130415).

211311231313 is a wasteful number, since it uses less digits than its factorization.

211311231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322101463.

The product of its digits is 324, while the sum is 22.

Adding to 211311231313 its reverse (313132113112), we get a palindrome (524443344425).

The spelling of 211311231313 in words is "two hundred eleven billion, three hundred eleven million, two hundred thirty-one thousand, three hundred thirteen".