102030101 has 4 divisors (see below), whose sum is σ = 102050304. Its totient is φ = 102009900.

The previous prime is 102030067. The next prime is 102030113. The reversal of 102030101 is 101030201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 102030101 - 2¹⁰ = 102029077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030121) 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 3 ways as a sum of consecutive naturals, for example, 5036 + ... + 15146.

It is an arithmetic number, because the mean of its divisors is an integer number (25512576).

Almost surely, 2^102030101 is an apocalyptic number.

It is an amenable number.

102030101 is a deficient number, since it is larger than the sum of its proper divisors (20203).

102030101 is a wasteful number, since it uses less digits than its factorization.

102030101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20202.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 102030101 is about 10100.9950499938. The cubic root of 102030101 is about 467.2788296769.

Adding to 102030101 its reverse (101030201), we get a palindrome (203060302).

The spelling of 102030101 in words is "one hundred two million, thirty thousand, one hundred one".