312003012 has 48 divisors (see below), whose sum is σ = 752032512. Its totient is φ = 100615200.

The previous prime is 312003001. The next prime is 312003031. The reversal of 312003012 is 210300213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52387 + ... + 58037.

It is an arithmetic number, because the mean of its divisors is an integer number (15667344).

Almost surely, 2^312003012 is an apocalyptic number.

It is an amenable number.

312003012 is an abundant number, since it is smaller than the sum of its proper divisors (440029500).

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

312003012 is a wasteful number, since it uses less digits than its factorization.

312003012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5808 (or 5806 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 312003012 is about 17663.6069929106. The cubic root of 312003012 is about 678.2444711447.

Adding to 312003012 its reverse (210300213), we get a palindrome (522303225).

The spelling of 312003012 in words is "three hundred twelve million, three thousand, twelve".