312302020 has 24 divisors (see below), whose sum is σ = 665074368. Its totient is φ = 123160800.

The previous prime is 312301987. The next prime is 312302033. The reversal of 312302020 is 20203213.

It is a happy number.

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, 108546 + ... + 111385.

It is an arithmetic number, because the mean of its divisors is an integer number (27711432).

Almost surely, 2^312302020 is an apocalyptic number.

It is an amenable number.

312302020 is an abundant number, since it is smaller than the sum of its proper divisors (352772348).

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

312302020 is a wasteful number, since it uses less digits than its factorization.

312302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220011 (or 220009 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 312302020 is about 17672.0689224550. The cubic root of 312302020 is about 678.4610671015.

Adding to 312302020 its reverse (20203213), we get a palindrome (332505233).

The spelling of 312302020 in words is "three hundred twelve million, three hundred two thousand, twenty".