312121682 has 8 divisors (see below), whose sum is σ = 476118000. Its totient is φ = 153415684.

The previous prime is 312121679. The next prime is 312121699. The reversal of 312121682 is 286121213.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322432 + ... + 1322667.

It is an arithmetic number, because the mean of its divisors is an integer number (59514750).

Almost surely, 2^312121682 is an apocalyptic number.

312121682 is a deficient number, since it is larger than the sum of its proper divisors (163996318).

312121682 is a wasteful number, since it uses less digits than its factorization.

312121682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645160.

The product of its digits is 1152, while the sum is 26.

The square root of 312121682 is about 17666.9658402341. The cubic root of 312121682 is about 678.3304500894.

Adding to 312121682 its reverse (286121213), we get a palindrome (598242895).

The spelling of 312121682 in words is "three hundred twelve million, one hundred twenty-one thousand, six hundred eighty-two".