312040425221140 has 288 divisors, whose sum is σ = 843465215545344. Its totient is φ = 94183753086720.

The previous prime is 312040425221123. The next prime is 312040425221153. The reversal of 312040425221140 is 41122524040213.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 358735189 + ... + 359603971.

It is an arithmetic number, because the mean of its divisors is an integer number (2928698665088).

Almost surely, 2^{312040425221140} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312040425221140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421732607772672).

312040425221140 is an abundant number, since it is smaller than the sum of its proper divisors (531424790324204).

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

312040425221140 is a wasteful number, since it uses less digits than its factorization.

312040425221140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868995 (or 868934 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 312040425221140 its reverse (41122524040213), we get a palindrome (353162949261353).

The spelling of 312040425221140 in words is "three hundred twelve trillion, forty billion, four hundred twenty-five million, two hundred twenty-one thousand, one hundred forty".