312032120334440 has 64 divisors (see below), whose sum is σ = 766114055928000. Its totient is φ = 113434072496640.

The previous prime is 312032120334427. The next prime is 312032120334527. The reversal of 312032120334440 is 44433021230213.

It is a super-2 number, since 2×312032120334440² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312032120334397 and 312032120334406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98923850 + ... + 102029369.

It is an arithmetic number, because the mean of its divisors is an integer number (11970532123875).

Almost surely, 2^{312032120334440} is an apocalyptic number.

It is an amenable number.

312032120334440 is an abundant number, since it is smaller than the sum of its proper divisors (454081935593560).

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

312032120334440 is a wasteful number, since it uses less digits than its factorization.

312032120334440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200956770 (or 200956766 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 312032120334440 its reverse (44433021230213), we get a palindrome (356465141564653).

The spelling of 312032120334440 in words is "three hundred twelve trillion, thirty-two billion, one hundred twenty million, three hundred thirty-four thousand, four hundred forty".