4102130021 has 12 divisors (see below), whose sum is σ = 4512517632. Its totient is φ = 3729062700.

The previous prime is 4102129973. The next prime is 4102130027. The reversal of 4102130021 is 1200312014.

It is not a de Polignac number, because 4102130021 - 2¹⁰ = 4102128997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4102129978 and 4102130005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102130027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148316 + ... + 173786.

It is an arithmetic number, because the mean of its divisors is an integer number (376043136).

Almost surely, 2^4102130021 is an apocalyptic number.

It is an amenable number.

4102130021 is a deficient number, since it is larger than the sum of its proper divisors (410387611).

4102130021 is an frugal number, since it uses more digits than its factorization.

4102130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25526 (or 25482 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 4102130021 is about 64047.8728842731. The cubic root of 4102130021 is about 1600.7977819666.

Adding to 4102130021 its reverse (1200312014), we get a palindrome (5302442035).

The spelling of 4102130021 in words is "four billion, one hundred two million, one hundred thirty thousand, twenty-one".