321140343042 has 48 divisors (see below), whose sum is σ = 739976196960. Its totient is φ = 100367237376.

The previous prime is 321140342989. The next prime is 321140343067. The reversal of 321140343042 is 240343041123.

321140343042 is a `hidden beast` number, since 3 + 211 + 403 + 4 + 3 + 0 + 42 = 666.

It is a super-2 number, since 2×321140343042² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321140342997 and 321140343015.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4807068 + ... + 4873415.

It is an arithmetic number, because the mean of its divisors is an integer number (15416170770).

Almost surely, 2^321140343042 is an apocalyptic number.

321140343042 is an abundant number, since it is smaller than the sum of its proper divisors (418835853918).

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

321140343042 is a wasteful number, since it uses less digits than its factorization.

321140343042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9680607 (or 9680604 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 321140343042 its reverse (240343041123), we get a palindrome (561483384165).

The spelling of 321140343042 in words is "three hundred twenty-one billion, one hundred forty million, three hundred forty-three thousand, forty-two".