321400050445 has 4 divisors (see below), whose sum is σ = 385680060540. Its totient is φ = 257120040352.

The previous prime is 321400050443. The next prime is 321400050449. The reversal of 321400050445 is 544050004123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 191132472969 + 130267577476 = 437187^2 + 360926^2 .

It is a cyclic number.

It is not a de Polignac number, because 321400050445 - 2¹ = 321400050443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321400050443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32140005040 + ... + 32140005049.

It is an arithmetic number, because the mean of its divisors is an integer number (96420015135).

Almost surely, 2^321400050445 is an apocalyptic number.

It is an amenable number.

321400050445 is a deficient number, since it is larger than the sum of its proper divisors (64280010095).

321400050445 is an equidigital number, since it uses as much as digits as its factorization.

321400050445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64280010094.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 321400050445 its reverse (544050004123), we get a palindrome (865450054568).

The spelling of 321400050445 in words is "three hundred twenty-one billion, four hundred million, fifty thousand, four hundred forty-five".