312040045420312 has 64 divisors (see below), whose sum is σ = 644184144691200. Its totient is φ = 140523843075840.

The previous prime is 312040045420309. The next prime is 312040045420379. The reversal of 312040045420312 is 213024540040213.

It is a congruent number.

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, 11380693 + ... + 27451780.

It is an arithmetic number, because the mean of its divisors is an integer number (10065377260800).

Almost surely, 2^{312040045420312} is an apocalyptic number.

It is an amenable number.

312040045420312 is an abundant number, since it is smaller than the sum of its proper divisors (332144099270888).

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

312040045420312 is a wasteful number, since it uses less digits than its factorization.

312040045420312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38833336 (or 38833332 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 312040045420312 its reverse (213024540040213), we get a palindrome (525064585460525).

The spelling of 312040045420312 in words is "three hundred twelve trillion, forty billion, forty-five million, four hundred twenty thousand, three hundred twelve".