102102330 has 128 divisors (see below), whose sum is σ = 283668480. Its totient is φ = 23287040.

The previous prime is 102102307. The next prime is 102102337. The reversal of 102102330 is 33201201.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102102337) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 449677 + ... + 449903.

It is an arithmetic number, because the mean of its divisors is an integer number (2216160).

Almost surely, 2^102102330 is an apocalyptic number.

102102330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102102330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141834240).

102102330 is an abundant number, since it is smaller than the sum of its proper divisors (181566150).

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

102102330 is a wasteful number, since it uses less digits than its factorization.

102102330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 102102330 is about 10104.5697582826. The cubic root of 102102330 is about 467.3890687829.

Adding to 102102330 its reverse (33201201), we get a palindrome (135303531).

The spelling of 102102330 in words is "one hundred two million, one hundred two thousand, three hundred thirty".