321040402104444 has 24 divisors (see below), whose sum is σ = 817193750811648. Its totient is φ = 97284970334640.

The previous prime is 321040402104431. The next prime is 321040402104449. The reversal of 321040402104444 is 444401204040123.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321040402104449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216062129052 + ... + 1216062129315.

It is an arithmetic number, because the mean of its divisors is an integer number (34049739617152).

Almost surely, 2^{321040402104444} is an apocalyptic number.

It is an amenable number.

321040402104444 is an abundant number, since it is smaller than the sum of its proper divisors (496153348707204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321040402104444 is a wasteful number, since it uses less digits than its factorization.

321040402104444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432124258385 (or 2432124258383 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 321040402104444 its reverse (444401204040123), we get a palindrome (765441606144567).

The spelling of 321040402104444 in words is "three hundred twenty-one trillion, forty billion, four hundred two million, one hundred four thousand, four hundred forty-four".