313221313101 has 4 divisors (see below), whose sum is σ = 417628417472. Its totient is φ = 208814208732.

The previous prime is 313221313099. The next prime is 313221313121. The reversal of 313221313101 is 101313122313.

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 313221313101 - 2¹ = 313221313099 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 (313221313121) 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, 52203552181 + ... + 52203552186.

It is an arithmetic number, because the mean of its divisors is an integer number (104407104368).

Almost surely, 2^313221313101 is an apocalyptic number.

It is an amenable number.

313221313101 is a deficient number, since it is larger than the sum of its proper divisors (104407104371).

313221313101 is a wasteful number, since it uses less digits than its factorization.

313221313101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104407104370.

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

Adding to 313221313101 its reverse (101313122313), we get a palindrome (414534435414).

The spelling of 313221313101 in words is "three hundred thirteen billion, two hundred twenty-one million, three hundred thirteen thousand, one hundred one".