321613351130452 has 24 divisors (see below), whose sum is σ = 577713838213512. Its totient is φ = 156604455984000.

The previous prime is 321613351130447. The next prime is 321613351130459. The reversal of 321613351130452 is 254031153316123.

It can be written as a sum of positive squares in 4 ways, for example, as 1510942473616 + 320102408656836 = 1229204^2 + 17891406^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321613351130459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6525161023 + ... + 6525210310.

It is an arithmetic number, because the mean of its divisors is an integer number (24071409925563).

Almost surely, 2^{321613351130452} is an apocalyptic number.

It is an amenable number.

321613351130452 is a deficient number, since it is larger than the sum of its proper divisors (256100487083060).

321613351130452 is a wasteful number, since it uses less digits than its factorization.

321613351130452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13050371499 (or 13050371497 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 321613351130452 in words is "three hundred twenty-one trillion, six hundred thirteen billion, three hundred fifty-one million, one hundred thirty thousand, four hundred fifty-two".