321140300020040 has 32 divisors (see below), whose sum is σ = 725805879886080. Its totient is φ = 127880083591872.

The previous prime is 321140300020013. The next prime is 321140300020081. The reversal of 321140300020040 is 40020003041123.

It is a super-2 number, since 2×321140300020040² (a number of 30 digits) contains 22 as substring.

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 = 321140300019994 and 321140300020021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18001128974 + ... + 18001146813.

It is an arithmetic number, because the mean of its divisors is an integer number (22681433746440).

Almost surely, 2^{321140300020040} is an apocalyptic number.

It is an amenable number.

321140300020040 is an abundant number, since it is smaller than the sum of its proper divisors (404665579866040).

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

321140300020040 is a wasteful number, since it uses less digits than its factorization.

321140300020040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36002276021 (or 36002276017 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 321140300020040 its reverse (40020003041123), we get a palindrome (361160303061163).

The spelling of 321140300020040 in words is "three hundred twenty-one trillion, one hundred forty billion, three hundred million, twenty thousand, forty".