312443230121 has 8 divisors (see below), whose sum is σ = 340851330624. Its totient is φ = 284035824720.

The previous prime is 312443230111. The next prime is 312443230153. The reversal of 312443230121 is 121032344213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312443230121 - 2¹⁰ = 312443229097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312443230111) 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, 1337756 + ... + 1553858.

It is an arithmetic number, because the mean of its divisors is an integer number (42606416328).

Almost surely, 2^312443230121 is an apocalyptic number.

It is an amenable number.

312443230121 is a deficient number, since it is larger than the sum of its proper divisors (28408100503).

312443230121 is a wasteful number, since it uses less digits than its factorization.

312443230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347551.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 312443230121 its reverse (121032344213), we get a palindrome (433475574334).

The spelling of 312443230121 in words is "three hundred twelve billion, four hundred forty-three million, two hundred thirty thousand, one hundred twenty-one".