321430101010421 has 12 divisors (see below), whose sum is σ = 367715351120292. Its totient is φ = 279251490467328.

The previous prime is 321430101010411. The next prime is 321430101010427. The reversal of 321430101010421 is 124010101034123.

It can be written as a sum of positive squares in 6 ways, for example, as 40392202296196 + 281037898714225 = 6355486^2 + 16764185^2 .

It is not a de Polignac number, because 321430101010421 - 2⁴² = 317032054499317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321430101010427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42777491720 + ... + 42777499233.

It is an arithmetic number, because the mean of its divisors is an integer number (30642945926691).

Almost surely, 2^{321430101010421} is an apocalyptic number.

It is an amenable number.

321430101010421 is a deficient number, since it is larger than the sum of its proper divisors (46285250109871).

321430101010421 is a wasteful number, since it uses less digits than its factorization.

321430101010421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85554991000 (or 85554990983 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 321430101010421 its reverse (124010101034123), we get a palindrome (445440202044544).

The spelling of 321430101010421 in words is "three hundred twenty-one trillion, four hundred thirty billion, one hundred one million, ten thousand, four hundred twenty-one".