313040230221 has 4 divisors (see below), whose sum is σ = 417386973632. Its totient is φ = 208693486812.

The previous prime is 313040230211. The next prime is 313040230253. The reversal of 313040230221 is 122032040313.

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 313040230221 - 2⁹ = 313040229709 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 (313040230211) 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, 52173371701 + ... + 52173371706.

It is an arithmetic number, because the mean of its divisors is an integer number (104346743408).

Almost surely, 2^313040230221 is an apocalyptic number.

It is an amenable number.

313040230221 is a deficient number, since it is larger than the sum of its proper divisors (104346743411).

313040230221 is a wasteful number, since it uses less digits than its factorization.

313040230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104346743410.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 313040230221 its reverse (122032040313), we get a palindrome (435072270534).

The spelling of 313040230221 in words is "three hundred thirteen billion, forty million, two hundred thirty thousand, two hundred twenty-one".