102204312 has 32 divisors (see below), whose sum is σ = 292012800. Its totient is φ = 29201184.

The previous prime is 102204283. The next prime is 102204313. The reversal of 102204312 is 213402201.

It is a junction number, because it is equal to n+sod(n) for n = 102204291 and 102204300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102204313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304012 + ... + 304347.

It is an arithmetic number, because the mean of its divisors is an integer number (9125400).

Almost surely, 2^102204312 is an apocalyptic number.

102204312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102204312 is an abundant number, since it is smaller than the sum of its proper divisors (189808488).

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

102204312 is a wasteful number, since it uses less digits than its factorization.

102204312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608375 (or 608371 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 102204312 is about 10109.6148294581. The cubic root of 102204312 is about 467.5446297485.

Adding to 102204312 its reverse (213402201), we get a palindrome (315606513).

The spelling of 102204312 in words is "one hundred two million, two hundred four thousand, three hundred twelve".