312113012 has 6 divisors (see below), whose sum is σ = 546197778. Its totient is φ = 156056504.

The previous prime is 312112987. The next prime is 312113029. The reversal of 312113012 is 210311213.

It can be written as a sum of positive squares in only one way, i.e., 241989136 + 70123876 = 15556^2 + 8374^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39014123 + ... + 39014130.

It is an arithmetic number, because the mean of its divisors is an integer number (91032963).

Almost surely, 2^312113012 is an apocalyptic number.

It is an amenable number.

312113012 is a deficient number, since it is larger than the sum of its proper divisors (234084766).

312113012 is a wasteful number, since it uses less digits than its factorization.

312113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78028257 (or 78028255 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 312113012 is about 17666.7204653269. The cubic root of 312113012 is about 678.3241692276.

Adding to 312113012 its reverse (210311213), we get a palindrome (522424225).

The spelling of 312113012 in words is "three hundred twelve million, one hundred thirteen thousand, twelve".