312002020 has 48 divisors (see below), whose sum is σ = 756822528. Its totient is φ = 106780160.

The previous prime is 312001999. The next prime is 312002051. The reversal of 312002020 is 20200213.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 312001988 and 312002006.

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 15 ways as a sum of consecutive naturals, for example, 37972 + ... + 45451.

It is an arithmetic number, because the mean of its divisors is an integer number (15767136).

Almost surely, 2^312002020 is an apocalyptic number.

It is an amenable number.

312002020 is an abundant number, since it is smaller than the sum of its proper divisors (444820508).

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

312002020 is a wasteful number, since it uses less digits than its factorization.

312002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83460 (or 83458 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 312002020 is about 17663.5789125534. The cubic root of 312002020 is about 678.2437523277.

Adding to 312002020 its reverse (20200213), we get a palindrome (332202233).

The spelling of 312002020 in words is "three hundred twelve million, two thousand, twenty".