4104131021 has 2 divisors, whose sum is σ = 4104131022. Its totient is φ = 4104131020.

The previous prime is 4104130997. The next prime is 4104131047. The reversal of 4104131021 is 1201314014.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3917508100 + 186622921 = 62590^2 + 13661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4104131021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4104131221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2052065510 + 2052065511.

It is an arithmetic number, because the mean of its divisors is an integer number (2052065511).

Almost surely, 2^4104131021 is an apocalyptic number.

It is an amenable number.

4104131021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4104131021 is an equidigital number, since it uses as much as digits as its factorization.

4104131021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 4104131021 is about 64063.4921074398. The cubic root of 4104131021 is about 1601.0580269004.

Adding to 4104131021 its reverse (1201314014), we get a palindrome (5305445035).

The spelling of 4104131021 in words is "four billion, one hundred four million, one hundred thirty-one thousand, twenty-one".