312333421420 has 48 divisors (see below), whose sum is σ = 694296963360. Its totient is φ = 117820071936.

The previous prime is 312333421409. The next prime is 312333421447. The reversal of 312333421420 is 24124333213.

It is a happy number.

It is a super-2 number, since 2×312333421420² (a number of 24 digits) contains 22 as substring.

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, 6236757 + ... + 6286636.

It is an arithmetic number, because the mean of its divisors is an integer number (14464520070).

Almost surely, 2^312333421420 is an apocalyptic number.

It is an amenable number.

312333421420 is an abundant number, since it is smaller than the sum of its proper divisors (381963541940).

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

312333421420 is a wasteful number, since it uses less digits than its factorization.

312333421420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12523474 (or 12523472 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 312333421420 its reverse (24124333213), we get a palindrome (336457754633).

The spelling of 312333421420 in words is "three hundred twelve billion, three hundred thirty-three million, four hundred twenty-one thousand, four hundred twenty".