321313001022 has 96 divisors (see below), whose sum is σ = 795213592992. Its totient is φ = 92887990272.

The previous prime is 321313001021. The next prime is 321313001029. The reversal of 321313001022 is 220100313123.

321313001022 is a `hidden beast` number, since 321 + 31 + 300 + 10 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 321313000986 and 321313001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321313001021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2225313 + ... + 2365299.

It is an arithmetic number, because the mean of its divisors is an integer number (8283474927).

Almost surely, 2^321313001022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321313001022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397606796496).

321313001022 is an abundant number, since it is smaller than the sum of its proper divisors (473900591970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321313001022 is a wasteful number, since it uses less digits than its factorization.

321313001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140602 (or 140599 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 321313001022 its reverse (220100313123), we get a palindrome (541413314145).

The spelling of 321313001022 in words is "three hundred twenty-one billion, three hundred thirteen million, one thousand, twenty-two".