312001220243423 has 8 divisors (see below), whose sum is σ = 334618984969200. Its totient is φ = 290003120304768.

The previous prime is 312001220243387. The next prime is 312001220243429. The reversal of 312001220243423 is 324342022100213.

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 312001220243423 - 2⁶ = 312001220243359 is a prime.

It is a super-2 number, since 2×312001220243423² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312001220243429) 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, 154916195738 + ... + 154916197751.

It is an arithmetic number, because the mean of its divisors is an integer number (41827373121150).

Almost surely, 2^{312001220243423} is an apocalyptic number.

312001220243423 is a deficient number, since it is larger than the sum of its proper divisors (22617764725777).

312001220243423 is a wasteful number, since it uses less digits than its factorization.

312001220243423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309832393561.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 312001220243423 its reverse (324342022100213), we get a palindrome (636343242343636).

The spelling of 312001220243423 in words is "three hundred twelve trillion, one billion, two hundred twenty million, two hundred forty-three thousand, four hundred twenty-three".