102342312 has 128 divisors (see below), whose sum is σ = 307929600. Its totient is φ = 31371264.

The previous prime is 102342301. The next prime is 102342353. The reversal of 102342312 is 213243201.

102342312 is a `hidden beast` number, since 10 + 2 + 342 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172288 + ... + 172880.

It is an arithmetic number, because the mean of its divisors is an integer number (2405700).

Almost surely, 2^102342312 is an apocalyptic number.

102342312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102342312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153964800).

102342312 is an abundant number, since it is smaller than the sum of its proper divisors (205587288).

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

102342312 is a wasteful number, since it uses less digits than its factorization.

102342312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 102342312 is about 10116.4377129501. The cubic root of 102342312 is about 467.7549670614.

Adding to 102342312 its reverse (213243201), we get a palindrome (315585513).

The spelling of 102342312 in words is "one hundred two million, three hundred forty-two thousand, three hundred twelve".