312111012232 has 16 divisors (see below), whose sum is σ = 585214834140. Its totient is φ = 156053723136.

The previous prime is 312111012229. The next prime is 312111012319. The reversal of 312111012232 is 232210111213.

It can be written as a sum of positive squares in 2 ways, for example, as 268786254916 + 43324757316 = 518446^2 + 208146^2 .

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, 794008 + ... + 1120120.

Almost surely, 2^312111012232 is an apocalyptic number.

It is an amenable number.

312111012232 is a deficient number, since it is larger than the sum of its proper divisors (273103821908).

312111012232 is a wasteful number, since it uses less digits than its factorization.

312111012232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445752 (or 445748 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 312111012232 its reverse (232210111213), we get a palindrome (544321123445).

The spelling of 312111012232 in words is "three hundred twelve billion, one hundred eleven million, twelve thousand, two hundred thirty-two".