321315262340 has 12 divisors (see below), whose sum is σ = 674762050956. Its totient is φ = 128526104928.

The previous prime is 321315262327. The next prime is 321315262363. The reversal of 321315262340 is 43262513123.

It can be written as a sum of positive squares in 2 ways, for example, as 235929747076 + 85385515264 = 485726^2 + 292208^2 .

It is a super-3 number, since 3×321315262340³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321315262297 and 321315262306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8032881539 + ... + 8032881578.

It is an arithmetic number, because the mean of its divisors is an integer number (56230170913).

Almost surely, 2^321315262340 is an apocalyptic number.

It is an amenable number.

321315262340 is an abundant number, since it is smaller than the sum of its proper divisors (353446788616).

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

321315262340 is a wasteful number, since it uses less digits than its factorization.

321315262340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16065763126 (or 16065763124 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 321315262340 its reverse (43262513123), we get a palindrome (364577775463).

The spelling of 321315262340 in words is "three hundred twenty-one billion, three hundred fifteen million, two hundred sixty-two thousand, three hundred forty".