312322020 has 24 divisors (see below), whose sum is σ = 874501824. Its totient is φ = 83285856.

The previous prime is 312322009. The next prime is 312322081. The reversal of 312322020 is 20223213.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2602624 + ... + 2602743.

It is an arithmetic number, because the mean of its divisors is an integer number (36437576).

Almost surely, 2^312322020 is an apocalyptic number.

312322020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312322020 is an abundant number, since it is smaller than the sum of its proper divisors (562179804).

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

312322020 is a wasteful number, since it uses less digits than its factorization.

312322020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205379 (or 5205377 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 312322020 is about 17672.6347780969. The cubic root of 312322020 is about 678.4755498039.

Adding to 312322020 its reverse (20223213), we get a palindrome (332545233).

The spelling of 312322020 in words is "three hundred twelve million, three hundred twenty-two thousand, twenty".