321125423340563 has 32 divisors (see below), whose sum is σ = 341869167259200. Its totient is φ = 300589811343360.

The previous prime is 321125423340487. The next prime is 321125423340613. The reversal of 321125423340563 is 365043324521123.

It is a cyclic number.

It is not a de Polignac number, because 321125423340563 - 2³⁶ = 321056703863827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321125423330563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43696475213 + ... + 43696482561.

It is an arithmetic number, because the mean of its divisors is an integer number (10683411476850).

Almost surely, 2^{321125423340563} is an apocalyptic number.

321125423340563 is a deficient number, since it is larger than the sum of its proper divisors (20743743918637).

321125423340563 is a wasteful number, since it uses less digits than its factorization.

321125423340563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14567.

The product of its (nonzero) digits is 1555200, while the sum is 44.

Adding to 321125423340563 its reverse (365043324521123), we get a palindrome (686168747861686).

The spelling of 321125423340563 in words is "three hundred twenty-one trillion, one hundred twenty-five billion, four hundred twenty-three million, three hundred forty thousand, five hundred sixty-three".