321442121245653 has 16 divisors (see below), whose sum is σ = 476212594190400. Its totient is φ = 214293827608560.

The previous prime is 321442121245639. The next prime is 321442121245667. The reversal of 321442121245653 is 356542121244123.

321442121245653 is a `hidden beast` number, since 3 + 2 + 1 + 4 + 42 + 1 + 21 + 24 + 565 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (321442121245639) and next prime (321442121245667).

It is not a de Polignac number, because 321442121245653 - 2¹² = 321442121241557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321442121245599 and 321442121245608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321442121245603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19116663 + ... + 31754228.

It is an arithmetic number, because the mean of its divisors is an integer number (29763287136900).

Almost surely, 2^{321442121245653} is an apocalyptic number.

It is an amenable number.

321442121245653 is a deficient number, since it is larger than the sum of its proper divisors (154770472944747).

321442121245653 is a wasteful number, since it uses less digits than its factorization.

321442121245653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51104929 (or 51104923 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

Adding to 321442121245653 its reverse (356542121244123), we get a palindrome (677984242489776).

The spelling of 321442121245653 in words is "three hundred twenty-one trillion, four hundred forty-two billion, one hundred twenty-one million, two hundred forty-five thousand, six hundred fifty-three".