321212213112313 has 4 divisors (see below), whose sum is σ = 321214852676340. Its totient is φ = 321209573548288.

The previous prime is 321212213112299. The next prime is 321212213112331. The reversal of 321212213112313 is 313211312212123.

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 84532357445904 + 236679855666409 = 9194148^2 + 15384403^2 .

It is a cyclic number.

It is not a de Polignac number, because 321212213112313 - 2⁵ = 321212213112281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321212213112383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319599468 + ... + 1319842861.

It is an arithmetic number, because the mean of its divisors is an integer number (80303713169085).

Almost surely, 2^{321212213112313} is an apocalyptic number.

It is an amenable number.

321212213112313 is a deficient number, since it is larger than the sum of its proper divisors (2639564027).

321212213112313 is a wasteful number, since it uses less digits than its factorization.

321212213112313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639564026.

The product of its digits is 2592, while the sum is 28.

Adding to 321212213112313 its reverse (313211312212123), we get a palindrome (634423525324436).

The spelling of 321212213112313 in words is "three hundred twenty-one trillion, two hundred twelve billion, two hundred thirteen million, one hundred twelve thousand, three hundred thirteen".