312023012 has 12 divisors (see below), whose sum is σ = 624046080. Its totient is φ = 133724136.

The previous prime is 312023009. The next prime is 312023027. The reversal of 312023012 is 210320213.

It is a happy number.

312023012 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5571812 + ... + 5571867.

It is an arithmetic number, because the mean of its divisors is an integer number (52003840).

Almost surely, 2^312023012 is an apocalyptic number.

It is an amenable number.

312023012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

312023012 is a wasteful number, since it uses less digits than its factorization.

312023012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11143690 (or 11143688 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 312023012 is about 17664.1731196227. The cubic root of 312023012 is about 678.2589630984.

Adding to 312023012 its reverse (210320213), we get a palindrome (522343225).

The spelling of 312023012 in words is "three hundred twelve million, twenty-three thousand, twelve".