312332240321220 has 96 divisors (see below), whose sum is σ = 1001374189175808. Its totient is φ = 71253724920192.

The previous prime is 312332240321207. The next prime is 312332240321251. The reversal of 312332240321220 is 22123042233213.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710725074 + ... + 711164393.

It is an arithmetic number, because the mean of its divisors is an integer number (10430981137248).

Almost surely, 2^{312332240321220} is an apocalyptic number.

312332240321220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312332240321220 is an abundant number, since it is smaller than the sum of its proper divisors (689041948854588).

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

312332240321220 is a wasteful number, since it uses less digits than its factorization.

312332240321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421890009 (or 1421890007 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 312332240321220 its reverse (22123042233213), we get a palindrome (334455282554433).

The spelling of 312332240321220 in words is "three hundred twelve trillion, three hundred thirty-two billion, two hundred forty million, three hundred twenty-one thousand, two hundred twenty".