312120233320020 has 48 divisors (see below), whose sum is σ = 875472570181440. Its totient is φ = 83085784420096.

The previous prime is 312120233319989. The next prime is 312120233320039. The reversal of 312120233320020 is 20023332021213.

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, 4571146782 + ... + 4571215061.

It is an arithmetic number, because the mean of its divisors is an integer number (18239011878780).

Almost surely, 2^{312120233320020} is an apocalyptic number.

312120233320020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312120233320020 is an abundant number, since it is smaller than the sum of its proper divisors (563352336861420).

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

312120233320020 is a wasteful number, since it uses less digits than its factorization.

312120233320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9142362424 (or 9142362422 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 312120233320020 its reverse (20023332021213), we get a palindrome (332143565341233).

The spelling of 312120233320020 in words is "three hundred twelve trillion, one hundred twenty billion, two hundred thirty-three million, three hundred twenty thousand, twenty".