102421330 has 64 divisors (see below), whose sum is σ = 210833280. Its totient is φ = 35481600.

The previous prime is 102421283. The next prime is 102421331. The reversal of 102421330 is 33124201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102421331) by changing a digit.

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, 309265 + ... + 309595.

It is an arithmetic number, because the mean of its divisors is an integer number (3294270).

Almost surely, 2^102421330 is an apocalyptic number.

102421330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102421330 is an abundant number, since it is smaller than the sum of its proper divisors (108411950).

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

102421330 is a wasteful number, since it uses less digits than its factorization.

102421330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 102421330 is about 10120.3423855125. The cubic root of 102421330 is about 467.8753198684.

Adding to 102421330 its reverse (33124201), we get a palindrome (135545531).

The spelling of 102421330 in words is "one hundred two million, four hundred twenty-one thousand, three hundred thirty".