102332421 has 12 divisors (see below), whose sum is σ = 147944940. Its totient is φ = 68160960.

The previous prime is 102332407. The next prime is 102332429. The reversal of 102332421 is 124233201.

102332421 is a `hidden beast` number, since 10 + 233 + 2 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 74390625 + 27941796 = 8625^2 + 5286^2 .

It is not a de Polignac number, because 102332421 - 2⁶ = 102332357 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102332394 and 102332403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102332429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7191 + ... + 16011.

It is an arithmetic number, because the mean of its divisors is an integer number (12328745).

Almost surely, 2^102332421 is an apocalyptic number.

It is an amenable number.

102332421 is a deficient number, since it is larger than the sum of its proper divisors (45612519).

102332421 is a wasteful number, since it uses less digits than its factorization.

102332421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10116 (or 10113 counting only the distinct ones).

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

The square root of 102332421 is about 10115.9488432870. The cubic root of 102332421 is about 467.7398976558.

Adding to 102332421 its reverse (124233201), we get a palindrome (226565622).

The spelling of 102332421 in words is "one hundred two million, three hundred thirty-two thousand, four hundred twenty-one".