102303021 has 8 divisors (see below), whose sum is σ = 137679264. Its totient is φ = 67564400.

The previous prime is 102303017. The next prime is 102303023. The reversal of 102303021 is 120303201.

It is a happy number.

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 102303021 - 2² = 102303017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102302988 and 102303006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102303023) 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 7 ways as a sum of consecutive naturals, for example, 159030 + ... + 159671.

It is an arithmetic number, because the mean of its divisors is an integer number (17209908).

Almost surely, 2^102303021 is an apocalyptic number.

It is an amenable number.

102303021 is a deficient number, since it is larger than the sum of its proper divisors (35376243).

102303021 is a wasteful number, since it uses less digits than its factorization.

102303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318811.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 102303021 is about 10114.4955880162. The cubic root of 102303021 is about 467.6950996338.

Adding to 102303021 its reverse (120303201), we get a palindrome (222606222).

The spelling of 102303021 in words is "one hundred two million, three hundred three thousand, twenty-one".