102041021 has 8 divisors (see below), whose sum is σ = 110556864. Its totient is φ = 93804480.

The previous prime is 102041003. The next prime is 102041029. The reversal of 102041021 is 120140201.

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 102041021 - 2⁶ = 102040957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102040993 and 102041011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102041029) 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 7 ways as a sum of consecutive naturals, for example, 69065 + ... + 70526.

It is an arithmetic number, because the mean of its divisors is an integer number (13819608).

Almost surely, 2^102041021 is an apocalyptic number.

It is an amenable number.

102041021 is a deficient number, since it is larger than the sum of its proper divisors (8515843).

102041021 is a wasteful number, since it uses less digits than its factorization.

102041021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139651.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 102041021 is about 10101.5355763369. The cubic root of 102041021 is about 467.2954996032.

Adding to 102041021 its reverse (120140201), we get a palindrome (222181222).

The spelling of 102041021 in words is "one hundred two million, forty-one thousand, twenty-one".