211031322131113 has 4 divisors (see below), whose sum is σ = 230215987779408. Its totient is φ = 191846656482820.

The previous prime is 211031322131093. The next prime is 211031322131131. The reversal of 211031322131113 is 311131223130112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211031322131113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211031322131173) 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, 9592332824131 + ... + 9592332824152.

It is an arithmetic number, because the mean of its divisors is an integer number (57553996944852).

Almost surely, 2^{211031322131113} is an apocalyptic number.

It is an amenable number.

211031322131113 is a deficient number, since it is larger than the sum of its proper divisors (19184665648295).

211031322131113 is a wasteful number, since it uses less digits than its factorization.

211031322131113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19184665648294.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 211031322131113 its reverse (311131223130112), we get a palindrome (522162545261225).

The spelling of 211031322131113 in words is "two hundred eleven trillion, thirty-one billion, three hundred twenty-two million, one hundred thirty-one thousand, one hundred thirteen".