102021230 has 16 divisors (see below), whose sum is σ = 183974544. Its totient is φ = 40733760.

The previous prime is 102021197. The next prime is 102021251. The reversal of 102021230 is 32120201.

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, 3431 + ... + 14690.

It is an arithmetic number, because the mean of its divisors is an integer number (11498409).

Almost surely, 2^102021230 is an apocalyptic number.

102021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021230 is a deficient number, since it is larger than the sum of its proper divisors (81953314).

102021230 is a wasteful number, since it uses less digits than its factorization.

102021230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18691.

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

The square root of 102021230 is about 10100.5559252944. Note that the first 3 decimals coincide. The cubic root of 102021230 is about 467.2652867760.

Adding to 102021230 its reverse (32120201), we get a palindrome (134141431).

The spelling of 102021230 in words is "one hundred two million, twenty-one thousand, two hundred thirty".