312043231420 has 24 divisors (see below), whose sum is σ = 667654765344. Its totient is φ = 122462248896.

The previous prime is 312043231403. The next prime is 312043231427. The reversal of 312043231420 is 24132340213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312043231427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147189144 + ... + 147191263.

It is an arithmetic number, because the mean of its divisors is an integer number (27818948556).

Almost surely, 2^312043231420 is an apocalyptic number.

It is an amenable number.

312043231420 is an abundant number, since it is smaller than the sum of its proper divisors (355611533924).

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

312043231420 is a wasteful number, since it uses less digits than its factorization.

312043231420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294380469 (or 294380467 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 312043231420 its reverse (24132340213), we get a palindrome (336175571633).

The spelling of 312043231420 in words is "three hundred twelve billion, forty-three million, two hundred thirty-one thousand, four hundred twenty".