312303023121 has 32 divisors (see below), whose sum is σ = 422757153280. Its totient is φ = 205054239744.

The previous prime is 312303023111. The next prime is 312303023141. The reversal of 312303023121 is 121320303213.

It is not a de Polignac number, because 312303023121 - 2¹¹ = 312303021073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (312303023111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39215286 + ... + 39223248.

It is an arithmetic number, because the mean of its divisors is an integer number (13211161040).

Almost surely, 2^312303023121 is an apocalyptic number.

It is an amenable number.

312303023121 is a deficient number, since it is larger than the sum of its proper divisors (110454130159).

312303023121 is a wasteful number, since it uses less digits than its factorization.

312303023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8845.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 312303023121 its reverse (121320303213), we get a palindrome (433623326334).

The spelling of 312303023121 in words is "three hundred twelve billion, three hundred three million, twenty-three thousand, one hundred twenty-one".