312420042444 has 12 divisors (see below), whose sum is σ = 728980099064. Its totient is φ = 104140014144.

The previous prime is 312420042433. The next prime is 312420042491. The reversal of 312420042444 is 444240024213.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×312420042444² (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 3 ways as a sum of consecutive naturals, for example, 13017501757 + ... + 13017501780.

Almost surely, 2^312420042444 is an apocalyptic number.

It is an amenable number.

312420042444 is an abundant number, since it is smaller than the sum of its proper divisors (416560056620).

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

312420042444 is a wasteful number, since it uses less digits than its factorization.

312420042444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26035003544 (or 26035003542 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 312420042444 its reverse (444240024213), we get a palindrome (756660066657).

The spelling of 312420042444 in words is "three hundred twelve billion, four hundred twenty million, forty-two thousand, four hundred forty-four".