312150215412 has 36 divisors (see below), whose sum is σ = 901767289696. Its totient is φ = 89185775760.

The previous prime is 312150215411. The next prime is 312150215437. The reversal of 312150215412 is 214512051213.

It is a happy number.

312150215412 is a `hidden beast` number, since 3 + 1 + 2 + 1 + 502 + 154 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312150215411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 619345414 + ... + 619345917.

Almost surely, 2^312150215412 is an apocalyptic number.

It is an amenable number.

312150215412 is an abundant number, since it is smaller than the sum of its proper divisors (589617074284).

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

312150215412 is a wasteful number, since it uses less digits than its factorization.

312150215412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238691348 (or 1238691343 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 312150215412 its reverse (214512051213), we get a palindrome (526662266625).

The spelling of 312150215412 in words is "three hundred twelve billion, one hundred fifty million, two hundred fifteen thousand, four hundred twelve".