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10002101 = 43232607

10002101 has 4 divisors (see below), whose sum is σ = 10234752. Its totient is φ = 9769452.

The previous prime is 10002077. The next prime is 10002121. The reversal of 10002101 is 10120001.

Adding to 10002101 its reverse (10120001), we get a palindrome (20122102).

Multipling 10002101 by its reverse (10120001), we get a palindrome (101221272122101).

It is a happy number.

10002101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 10120001 = 49120611.

It is a cyclic number.

It is not a de Polignac number, because 10002101 - 222 = 5807797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002121) 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, 116261 + ... + 116346.

It is an arithmetic number, because the mean of its divisors is an integer number (2558688).

Almost surely, 210002101 is an apocalyptic number.

It is an amenable number.

10002101 is a deficient number, since it is larger than the sum of its proper divisors (232651).

10002101 is an equidigital number, since it uses as much as digits as its factorization.

10002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232650.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 10002101 is about 3162.6098399898. The cubic root of 10002101 is about 215.4585561709.

The spelling of 10002101 in words is "ten million, two thousand, one hundred one".

Divisors: 1 43 232607 10002101