212120313 has 8 divisors (see below), whose sum is σ = 297712800. Its totient is φ = 133970688.

The previous prime is 212120291. The next prime is 212120327. The reversal of 212120313 is 313021212.

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

It is not a de Polignac number, because 212120313 - 2⁹ = 212119801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212120292 and 212120301.

It is not an unprimeable number, because it can be changed into a prime (212120393) 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, 1860648 + ... + 1860761.

It is an arithmetic number, because the mean of its divisors is an integer number (37214100).

Almost surely, 2^212120313 is an apocalyptic number.

It is an amenable number.

212120313 is a deficient number, since it is larger than the sum of its proper divisors (85592487).

212120313 is a wasteful number, since it uses less digits than its factorization.

212120313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3721431.

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

The square root of 212120313 is about 14564.3507579294. The cubic root of 212120313 is about 596.3859722685.

Adding to 212120313 its reverse (313021212), we get a palindrome (525141525).

The spelling of 212120313 in words is "two hundred twelve million, one hundred twenty thousand, three hundred thirteen".