312303212 has 36 divisors (see below), whose sum is σ = 594588960. Its totient is φ = 143462592.

The previous prime is 312303197. The next prime is 312303217. The reversal of 312303212 is 212303213.

It is not an unprimeable number, because it can be changed into a prime (312303217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160598 + ... + 162530.

It is an arithmetic number, because the mean of its divisors is an integer number (16516360).

Almost surely, 2^312303212 is an apocalyptic number.

It is an amenable number.

312303212 is a deficient number, since it is larger than the sum of its proper divisors (282285748).

312303212 is a wasteful number, since it uses less digits than its factorization.

312303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 312303212 is about 17672.1026479590. The cubic root of 312303212 is about 678.4619302879.

Adding to 312303212 its reverse (212303213), we get a palindrome (524606425).

Subtracting from 312303212 its reverse (212303213), we obtain a palindrome (99999999).

The spelling of 312303212 in words is "three hundred twelve million, three hundred three thousand, two hundred twelve".