312120311422 has 16 divisors (see below), whose sum is σ = 474132291840. Its totient is φ = 154076426712.

The previous prime is 312120311417. The next prime is 312120311431. The reversal of 312120311422 is 224113021213.

It is a junction number, because it is equal to n+sod(n) for n = 312120311393 and 312120311402.

It is a congruent number.

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, 3757713 + ... + 3839875.

It is an arithmetic number, because the mean of its divisors is an integer number (29633268240).

Almost surely, 2^312120311422 is an apocalyptic number.

312120311422 is a deficient number, since it is larger than the sum of its proper divisors (162011980418).

312120311422 is a wasteful number, since it uses less digits than its factorization.

312120311422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106287.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 312120311422 its reverse (224113021213), we get a palindrome (536233332635).

The spelling of 312120311422 in words is "three hundred twelve billion, one hundred twenty million, three hundred eleven thousand, four hundred twenty-two".