321003030400040 has 64 divisors (see below), whose sum is σ = 722804029234560. Its totient is φ = 128303935755520.

The previous prime is 321003030400007. The next prime is 321003030400099. The reversal of 321003030400040 is 40004030300123.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 321003030399985 and 321003030400021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2587274087 + ... + 2587398153.

It is an arithmetic number, because the mean of its divisors is an integer number (11293812956790).

Almost surely, 2^{321003030400040} is an apocalyptic number.

It is an amenable number.

321003030400040 is an abundant number, since it is smaller than the sum of its proper divisors (401800998834520).

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

321003030400040 is a wasteful number, since it uses less digits than its factorization.

321003030400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172562 (or 172558 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 321003030400040 its reverse (40004030300123), we get a palindrome (361007060700163).

The spelling of 321003030400040 in words is "three hundred twenty-one trillion, three billion, thirty million, four hundred thousand, forty".