312333401121220 has 24 divisors (see below), whose sum is σ = 656835805925208. Its totient is φ = 124755138816000.

The previous prime is 312333401121211. The next prime is 312333401121257. The reversal of 312333401121220 is 22121104333213.

It can be written as a sum of positive squares in 4 ways, for example, as 72763493143104 + 239569907978116 = 8530152^2 + 15478046^2 .

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, 11138837661 + ... + 11138865700.

It is an arithmetic number, because the mean of its divisors is an integer number (27368158580217).

Almost surely, 2^{312333401121220} is an apocalyptic number.

It is an amenable number.

312333401121220 is an abundant number, since it is smaller than the sum of its proper divisors (344502404803988).

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

312333401121220 is a wasteful number, since it uses less digits than its factorization.

312333401121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22277704071 (or 22277704069 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 312333401121220 its reverse (22121104333213), we get a palindrome (334454505454433).

The spelling of 312333401121220 in words is "three hundred twelve trillion, three hundred thirty-three billion, four hundred one million, one hundred twenty-one thousand, two hundred twenty".