321054252331 has 4 divisors (see below), whose sum is σ = 321056337232. Its totient is φ = 321052167432.

The previous prime is 321054252329. The next prime is 321054252347. The reversal of 321054252331 is 133252450123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321054252331 - 2¹ = 321054252329 is a prime.

It is a super-2 number, since 2×321054252331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321054252293 and 321054252302.

It is not an unprimeable number, because it can be changed into a prime (321054252031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791295 + ... + 1126168.

It is an arithmetic number, because the mean of its divisors is an integer number (80264084308).

Almost surely, 2^321054252331 is an apocalyptic number.

321054252331 is a deficient number, since it is larger than the sum of its proper divisors (2084901).

321054252331 is a wasteful number, since it uses less digits than its factorization.

321054252331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084900.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 321054252331 in words is "three hundred twenty-one billion, fifty-four million, two hundred fifty-two thousand, three hundred thirty-one".