102120230 has 16 divisors (see below), whose sum is σ = 191808864. Its totient is φ = 39072000.

The previous prime is 102120203. The next prime is 102120301. The reversal of 102120230 is 32021201.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 221771 + ... + 222230.

It is an arithmetic number, because the mean of its divisors is an integer number (11988054).

Almost surely, 2^102120230 is an apocalyptic number.

102120230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102120230 is a deficient number, since it is larger than the sum of its proper divisors (89688634).

102120230 is a wasteful number, since it uses less digits than its factorization.

102120230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444031.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 102120230 is about 10105.4554573260. The cubic root of 102120230 is about 467.4163805184.

Adding to 102120230 its reverse (32021201), we get a palindrome (134141431).

The spelling of 102120230 in words is "one hundred two million, one hundred twenty thousand, two hundred thirty".