321122011313 has 4 divisors (see below), whose sum is σ = 322401382128. Its totient is φ = 319842640500.

The previous prime is 321122011289. The next prime is 321122011349. The reversal of 321122011313 is 313110221123.

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, and also an emirpimes, since its reverse is a distinct semiprime: 313110221123 = 7 ⋅44730031589.

It is a cyclic number.

It is not a de Polignac number, because 321122011313 - 2¹⁶ = 321121945777 is a prime.

It is a super-2 number, since 2×321122011313² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321122019313) 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, 639685031 + ... + 639685532.

It is an arithmetic number, because the mean of its divisors is an integer number (80600345532).

Almost surely, 2^321122011313 is an apocalyptic number.

It is an amenable number.

321122011313 is a deficient number, since it is larger than the sum of its proper divisors (1279370815).

321122011313 is a wasteful number, since it uses less digits than its factorization.

321122011313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279370814.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 321122011313 its reverse (313110221123), we get a palindrome (634232232436).

The spelling of 321122011313 in words is "three hundred twenty-one billion, one hundred twenty-two million, eleven thousand, three hundred thirteen".