312130012 has 12 divisors (see below), whose sum is σ = 546724360. Its totient is φ = 155923056.

The previous prime is 312130009. The next prime is 312130073. The reversal of 312130012 is 210031213.

It is a super-2 number, since 2×312130012² = 194850288782240288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312129974 and 312130001.

It is a congruent number.

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, 30462 + ... + 39397.

Almost surely, 2^312130012 is an apocalyptic number.

It is an amenable number.

312130012 is a deficient number, since it is larger than the sum of its proper divisors (234594348).

312130012 is a wasteful number, since it uses less digits than its factorization.

312130012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70980 (or 70978 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 312130012 is about 17667.2015893859. The cubic root of 312130012 is about 678.3364845333.

Adding to 312130012 its reverse (210031213), we get a palindrome (522161225).

It can be divided in two parts, 3121 and 30012, that added together give a palindrome (33133).

The spelling of 312130012 in words is "three hundred twelve million, one hundred thirty thousand, twelve".