102432121 has 8 divisors (see below), whose sum is σ = 111824064. Its totient is φ = 93053520.

The previous prime is 102432073. The next prime is 102432139. The reversal of 102432121 is 121234201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102432121 - 2¹⁷ = 102301049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102432095 and 102432104.

It is not an unprimeable number, because it can be changed into a prime (102432521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19636 + ... + 24298.

It is an arithmetic number, because the mean of its divisors is an integer number (13978008).

Almost surely, 2^102432121 is an apocalyptic number.

102432121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102432121 is a deficient number, since it is larger than the sum of its proper divisors (9391943).

102432121 is a wasteful number, since it uses less digits than its factorization.

102432121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 102432121 is about 10120.8755056072. The cubic root of 102432121 is about 467.8917509031.

Adding to 102432121 its reverse (121234201), we get a palindrome (223666322).

The spelling of 102432121 in words is "one hundred two million, four hundred thirty-two thousand, one hundred twenty-one".