211313023113 has 4 divisors (see below), whose sum is σ = 281750697488. Its totient is φ = 140875348740.

The previous prime is 211313023111. The next prime is 211313023171. The reversal of 211313023113 is 311320313112.

It is a happy number.

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 not a de Polignac number, because 211313023113 - 2¹ = 211313023111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211313023113.

It is not an unprimeable number, because it can be changed into a prime (211313023111) 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, 35218837183 + ... + 35218837188.

It is an arithmetic number, because the mean of its divisors is an integer number (70437674372).

Almost surely, 2^211313023113 is an apocalyptic number.

It is an amenable number.

211313023113 is a deficient number, since it is larger than the sum of its proper divisors (70437674375).

211313023113 is an equidigital number, since it uses as much as digits as its factorization.

211313023113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70437674374.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 211313023113 its reverse (311320313112), we get a palindrome (522633336225).

The spelling of 211313023113 in words is "two hundred eleven billion, three hundred thirteen million, twenty-three thousand, one hundred thirteen".