312213102 has 16 divisors (see below), whose sum is σ = 626316672. Its totient is φ = 103755960.

The previous prime is 312213061. The next prime is 312213163. The reversal of 312213102 is 201312213.

312213102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 76618 + ... + 80589.

It is an arithmetic number, because the mean of its divisors is an integer number (39144792).

Almost surely, 2^312213102 is an apocalyptic number.

312213102 is an abundant number, since it is smaller than the sum of its proper divisors (314103570).

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

312213102 is a wasteful number, since it uses less digits than its factorization.

312213102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157543.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 312213102 is about 17669.5529654827. The cubic root of 312213102 is about 678.3966709682.

Adding to 312213102 its reverse (201312213), we get a palindrome (513525315).

The spelling of 312213102 in words is "three hundred twelve million, two hundred thirteen thousand, one hundred two".