211310111133013 has 4 divisors (see below), whose sum is σ = 211800389813568. Its totient is φ = 210819832452460.

The previous prime is 211310111133007. The next prime is 211310111133031. The reversal of 211310111133013 is 310331111013112.

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-211310111133013 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 (211310111133073) 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, 245139339631 + ... + 245139340492.

It is an arithmetic number, because the mean of its divisors is an integer number (52950097453392).

Almost surely, 2^{211310111133013} is an apocalyptic number.

It is an amenable number.

211310111133013 is a deficient number, since it is larger than the sum of its proper divisors (490278680555).

211310111133013 is an equidigital number, since it uses as much as digits as its factorization.

211310111133013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490278680554.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 211310111133013 its reverse (310331111013112), we get a palindrome (521641222146125).

The spelling of 211310111133013 in words is "two hundred eleven trillion, three hundred ten billion, one hundred eleven million, one hundred thirty-three thousand, thirteen".