321440432100423 has 16 divisors (see below), whose sum is σ = 428938003353600. Its totient is φ = 214118277882080.

The previous prime is 321440432100377. The next prime is 321440432100467. The reversal of 321440432100423 is 324001234044123.

It is a cyclic number.

It is not a de Polignac number, because 321440432100423 - 2⁸ = 321440432100167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321440432100523) 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, 30425173 + ... + 39605201.

It is an arithmetic number, because the mean of its divisors is an integer number (26808625209600).

Almost surely, 2^{321440432100423} is an apocalyptic number.

321440432100423 is a deficient number, since it is larger than the sum of its proper divisors (107497571253177).

321440432100423 is a wasteful number, since it uses less digits than its factorization.

321440432100423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9189582.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 321440432100423 its reverse (324001234044123), we get a palindrome (645441666144546).

The spelling of 321440432100423 in words is "three hundred twenty-one trillion, four hundred forty billion, four hundred thirty-two million, one hundred thousand, four hundred twenty-three".