102313212 has 12 divisors (see below), whose sum is σ = 238730856. Its totient is φ = 34104400.

The previous prime is 102313199. The next prime is 102313217. The reversal of 102313212 is 212313201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 102313191 and 102313200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102313217) 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, 4263039 + ... + 4263062.

It is an arithmetic number, because the mean of its divisors is an integer number (19894238).

Almost surely, 2^102313212 is an apocalyptic number.

102313212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102313212 is an abundant number, since it is smaller than the sum of its proper divisors (136417644).

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

102313212 is a wasteful number, since it uses less digits than its factorization.

102313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8526108 (or 8526106 counting only the distinct ones).

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

The square root of 102313212 is about 10114.9993573900. Note that the first 3 decimals coincide. The cubic root of 102313212 is about 467.7106290628.

Adding to 102313212 its reverse (212313201), we get a palindrome (314626413).

The spelling of 102313212 in words is "one hundred two million, three hundred thirteen thousand, two hundred twelve".