312020333203240 has 32 divisors (see below), whose sum is σ = 718372395053280. Its totient is φ = 121905618553152.

The previous prime is 312020333203213. The next prime is 312020333203253. The reversal of 312020333203240 is 42302333020213.

It is a junction number, because it is equal to n+sod(n) for n = 312020333203199 and 312020333203208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90703583514 + ... + 90703586953.

It is an arithmetic number, because the mean of its divisors is an integer number (22449137345415).

Almost surely, 2^{312020333203240} is an apocalyptic number.

It is an amenable number.

312020333203240 is an abundant number, since it is smaller than the sum of its proper divisors (406352061850040).

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

312020333203240 is a wasteful number, since it uses less digits than its factorization.

312020333203240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181407170521 (or 181407170517 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 312020333203240 its reverse (42302333020213), we get a palindrome (354322666223453).

The spelling of 312020333203240 in words is "three hundred twelve trillion, twenty billion, three hundred thirty-three million, two hundred three thousand, two hundred forty".