4121021129 has 2 divisors, whose sum is σ = 4121021130. Its totient is φ = 4121021128.

The previous prime is 4121021111. The next prime is 4121021141. The reversal of 4121021129 is 9211201214.

4121021129 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4120998025 + 23104 = 64195^2 + 152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4121021129 is a prime.

It is not a weakly prime, because it can be changed into another prime (4121021189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060510564 + 2060510565.

It is an arithmetic number, because the mean of its divisors is an integer number (2060510565).

Almost surely, 2^4121021129 is an apocalyptic number.

It is an amenable number.

4121021129 is a deficient number, since it is larger than the sum of its proper divisors (1).

4121021129 is an equidigital number, since it uses as much as digits as its factorization.

4121021129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 4121021129 is about 64195.1799514574. The cubic root of 4121021129 is about 1603.2513479900.

The spelling of 4121021129 in words is "four billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-nine".