2141304021 has 6 divisors (see below), whose sum is σ = 3092994710. Its totient is φ = 1427536008.

The previous prime is 2141303993. The next prime is 2141304023. The reversal of 2141304021 is 1204031412.

It can be written as a sum of positive squares in only one way, i.e., 1805315121 + 335988900 = 42489^2 + 18330^2 .

It is not a de Polignac number, because 2141304021 - 2¹⁰ = 2141302997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2141303985 and 2141304003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141304023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118961326 + ... + 118961343.

Almost surely, 2^2141304021 is an apocalyptic number.

It is an amenable number.

2141304021 is a deficient number, since it is larger than the sum of its proper divisors (951690689).

2141304021 is a wasteful number, since it uses less digits than its factorization.

2141304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237922675 (or 237922672 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2141304021 is about 46274.2263144399. The cubic root of 2141304021 is about 1288.9204398707.

Adding to 2141304021 its reverse (1204031412), we get a palindrome (3345335433).

The spelling of 2141304021 in words is "two billion, one hundred forty-one million, three hundred four thousand, twenty-one".