321613351130453 has 8 divisors (see below), whose sum is σ = 321779104512600. Its totient is φ = 321447600534528.

The previous prime is 321613351130447. The next prime is 321613351130459. The reversal of 321613351130453 is 354031153316123.

It is an interprime number because it is at equal distance from previous prime (321613351130447) and next prime (321613351130459).

It can be written as a sum of positive squares in 4 ways, for example, as 29504472967204 + 292108878163249 = 5431802^2 + 17091193^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321613351130453 - 2¹² = 321613351126357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321613351130453.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254219453 + ... + 255481421.

It is an arithmetic number, because the mean of its divisors is an integer number (40222388064075).

Almost surely, 2^{321613351130453} is an apocalyptic number.

It is an amenable number.

321613351130453 is a deficient number, since it is larger than the sum of its proper divisors (165753382147).

321613351130453 is a wasteful number, since it uses less digits than its factorization.

321613351130453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393111.

The product of its (nonzero) digits is 291600, while the sum is 41.

The spelling of 321613351130453 in words is "three hundred twenty-one trillion, six hundred thirteen billion, three hundred fifty-one million, one hundred thirty thousand, four hundred fifty-three".