312201020 has 12 divisors (see below), whose sum is σ = 655622184. Its totient is φ = 124880400.

The previous prime is 312201013. The next prime is 312201023. The reversal of 312201020 is 20102213.

It is a happy number.

312201020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 312200992 and 312201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312201023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7805006 + ... + 7805045.

It is an arithmetic number, because the mean of its divisors is an integer number (54635182).

Almost surely, 2^312201020 is an apocalyptic number.

It is an amenable number.

312201020 is an abundant number, since it is smaller than the sum of its proper divisors (343421164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312201020 is a wasteful number, since it uses less digits than its factorization.

312201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15610060 (or 15610058 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 312201020 is about 17669.2110746349. The cubic root of 312201020 is about 678.3879200069.

Adding to 312201020 its reverse (20102213), we get a palindrome (332303233).

The spelling of 312201020 in words is "three hundred twelve million, two hundred one thousand, twenty".