312420103444 has 6 divisors (see below), whose sum is σ = 546735181034. Its totient is φ = 156210051720.

The previous prime is 312420103433. The next prime is 312420103483. The reversal of 312420103444 is 444301024213.

It can be written as a sum of positive squares in only one way, i.e., 279430646544 + 32989456900 = 528612^2 + 181630^2 .

It is a super-2 number, since 2×312420103444² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39052512927 + ... + 39052512934.

Almost surely, 2^312420103444 is an apocalyptic number.

It is an amenable number.

312420103444 is a deficient number, since it is larger than the sum of its proper divisors (234315077590).

312420103444 is a wasteful number, since it uses less digits than its factorization.

312420103444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78105025865 (or 78105025863 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 312420103444 its reverse (444301024213), we get a palindrome (756721127657).

The spelling of 312420103444 in words is "three hundred twelve billion, four hundred twenty million, one hundred three thousand, four hundred forty-four".