312023121 has 8 divisors (see below), whose sum is σ = 416959200. Its totient is φ = 207551232.

The previous prime is 312023119. The next prime is 312023143. The reversal of 312023121 is 121320213.

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

It is not a de Polignac number, because 312023121 - 2¹ = 312023119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312023121.

It is not an unprimeable number, because it can be changed into a prime (312023191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114475 + ... + 117168.

It is an arithmetic number, because the mean of its divisors is an integer number (52119900).

Almost surely, 2^312023121 is an apocalyptic number.

It is an amenable number.

312023121 is a deficient number, since it is larger than the sum of its proper divisors (104936079).

312023121 is a wasteful number, since it uses less digits than its factorization.

312023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232095.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 312023121 is about 17664.1762049635. The cubic root of 312023121 is about 678.2590420778.

Adding to 312023121 its reverse (121320213), we get a palindrome (433343334).

The spelling of 312023121 in words is "three hundred twelve million, twenty-three thousand, one hundred twenty-one".