312020 has 12 divisors (see below), whose sum is σ = 655284. Its totient is φ = 124800.

The previous prime is 312007. The next prime is 312023. The reversal of 312020 is 20213.

It can be written as a sum of positive squares in 2 ways, for example, as 217156 + 94864 = 466^2 + 308^2 .

It is a junction number, because it is equal to n+sod(n) for n = 311989 and 312007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7781 + ... + 7820.

It is an arithmetic number, because the mean of its divisors is an integer number (54607).

2³¹²⁰²⁰ is an apocalyptic number.

It is an amenable number.

312020 is an abundant number, since it is smaller than the sum of its proper divisors (343264).

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

312020 is a wasteful number, since it uses less digits than its factorization.

312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15610 (or 15608 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 312020 is about 558.5875043357. The cubic root of 312020 is about 67.8256780650.

Adding to 312020 its reverse (20213), we get a palindrome (332233).

The spelling of 312020 in words is "three hundred twelve thousand, twenty", and thus it is an iban number.