321003401240399 has 16 divisors (see below), whose sum is σ = 325102542105600. Its totient is φ = 316933418063136.

The previous prime is 321003401240393. The next prime is 321003401240437. The reversal of 321003401240399 is 993042104300123.

It is a cyclic number.

It is not a de Polignac number, because 321003401240399 - 2³² = 320999106273103 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 (321003401240393) 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, 18180737 + ... + 31185669.

It is an arithmetic number, because the mean of its divisors is an integer number (20318908881600).

Almost surely, 2^{321003401240399} is an apocalyptic number.

321003401240399 is a deficient number, since it is larger than the sum of its proper divisors (4099140865201).

321003401240399 is a wasteful number, since it uses less digits than its factorization.

321003401240399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13006054.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 321003401240399 in words is "three hundred twenty-one trillion, three billion, four hundred one million, two hundred forty thousand, three hundred ninety-nine".