313032022110221 has 4 divisors (see below), whose sum is σ = 313032296399292. Its totient is φ = 313031747821152.

The previous prime is 313032022110211. The next prime is 313032022110377. The reversal of 313032022110221 is 122011220230313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24174430562500 + 288857591547721 = 4916750^2 + 16995811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313032022110221 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 (313032022110211) 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, 135425480 + ... + 137717553.

It is an arithmetic number, because the mean of its divisors is an integer number (78258074099823).

Almost surely, 2^{313032022110221} is an apocalyptic number.

It is an amenable number.

313032022110221 is a deficient number, since it is larger than the sum of its proper divisors (274289071).

313032022110221 is a wasteful number, since it uses less digits than its factorization.

313032022110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274289070.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 313032022110221 its reverse (122011220230313), we get a palindrome (435043242340534).

The spelling of 313032022110221 in words is "three hundred thirteen trillion, thirty-two billion, twenty-two million, one hundred ten thousand, two hundred twenty-one".