312122323012 has 12 divisors (see below), whose sum is σ = 546451875900. Its totient is φ = 155993215616.

The previous prime is 312122323003. The next prime is 312122323013. The reversal of 312122323012 is 210323221213.

It can be written as a sum of positive squares in 2 ways, for example, as 202656630276 + 109465692736 = 450174^2 + 330856^2 .

It is not an unprimeable number, because it can be changed into a prime (312122323013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16976137 + ... + 16994512.

It is an arithmetic number, because the mean of its divisors is an integer number (45537656325).

Almost surely, 2^312122323012 is an apocalyptic number.

It is an amenable number.

312122323012 is a deficient number, since it is larger than the sum of its proper divisors (234329552888).

312122323012 is a wasteful number, since it uses less digits than its factorization.

312122323012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33972950 (or 33972948 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 312122323012 its reverse (210323221213), we get a palindrome (522445544225).

The spelling of 312122323012 in words is "three hundred twelve billion, one hundred twenty-two million, three hundred twenty-three thousand, twelve".