313543656211 has 4 divisors (see below), whose sum is σ = 331987400712. Its totient is φ = 295099911712.

The previous prime is 313543656191. The next prime is 313543656229. The reversal of 313543656211 is 112656345313.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-313543656211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313543653211) 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, 9221872225 + ... + 9221872258.

It is an arithmetic number, because the mean of its divisors is an integer number (82996850178).

Almost surely, 2^313543656211 is an apocalyptic number.

313543656211 is a deficient number, since it is larger than the sum of its proper divisors (18443744501).

313543656211 is a wasteful number, since it uses less digits than its factorization.

313543656211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18443744500.

The product of its digits is 194400, while the sum is 40.

The spelling of 313543656211 in words is "three hundred thirteen billion, five hundred forty-three million, six hundred fifty-six thousand, two hundred eleven".