312102012 has 24 divisors (see below), whose sum is σ = 729174096. Its totient is φ = 103900288.

The previous prime is 312101981. The next prime is 312102023. The reversal of 312102012 is 210201213.

312102012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent 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, 6753 + ... + 25880.

It is an arithmetic number, because the mean of its divisors is an integer number (30382254).

Almost surely, 2^312102012 is an apocalyptic number.

It is an amenable number.

312102012 is an abundant number, since it is smaller than the sum of its proper divisors (417072084).

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

312102012 is a wasteful number, since it uses less digits than its factorization.

312102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33437 (or 33435 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 312102012 is about 17666.4091427771. The cubic root of 312102012 is about 678.3162002620.

Adding to 312102012 its reverse (210201213), we get a palindrome (522303225).

The spelling of 312102012 in words is "three hundred twelve million, one hundred two thousand, twelve".