4404121013 has 2 divisors, whose sum is σ = 4404121014. Its totient is φ = 4404121012.

The previous prime is 4404121009. The next prime is 4404121027. The reversal of 4404121013 is 3101214044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3142947844 + 1261173169 = 56062^2 + 35513^2 .

It is a cyclic number.

It is not a de Polignac number, because 4404121013 - 2² = 4404121009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4404121003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2202060506 + 2202060507.

It is an arithmetic number, because the mean of its divisors is an integer number (2202060507).

Almost surely, 2^4404121013 is an apocalyptic number.

It is an amenable number.

4404121013 is a deficient number, since it is larger than the sum of its proper divisors (1).

4404121013 is an equidigital number, since it uses as much as digits as its factorization.

4404121013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4404121013 is about 66363.5518413534. The cubic root of 4404121013 is about 1639.1539624194.

Adding to 4404121013 its reverse (3101214044), we get a palindrome (7505335057).

The spelling of 4404121013 in words is "four billion, four hundred four million, one hundred twenty-one thousand, thirteen".