102102001 has 4 divisors (see below), whose sum is σ = 104274432. Its totient is φ = 99929572.

The previous prime is 102101971. The next prime is 102102019. The reversal of 102102001 is 100201201.

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.

It is a cyclic number.

It is not a de Polignac number, because 102102001 - 2¹¹ = 102099953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102102041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086145 + ... + 1086238.

It is an arithmetic number, because the mean of its divisors is an integer number (26068608).

Almost surely, 2^102102001 is an apocalyptic number.

It is an amenable number.

102102001 is a deficient number, since it is larger than the sum of its proper divisors (2172431).

102102001 is an equidigital number, since it uses as much as digits as its factorization.

102102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172430.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 102102001 is about 10104.5534785066. The cubic root of 102102001 is about 467.3885667664.

Adding to 102102001 its reverse (100201201), we get a palindrome (202303202).

The spelling of 102102001 in words is "one hundred two million, one hundred two thousand, one".