3421113121 has 2 divisors, whose sum is σ = 3421113122. Its totient is φ = 3421113120.

The previous prime is 3421113109. The next prime is 3421113149. The reversal of 3421113121 is 1213111243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3269552400 + 151560721 = 57180^2 + 12311^2 .

It is an emirp because it is prime and its reverse (1213111243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3421113121 - 2⁵ = 3421113089 is a prime.

It is not a weakly prime, because it can be changed into another prime (3421113161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710556560 + 1710556561.

It is an arithmetic number, because the mean of its divisors is an integer number (1710556561).

Almost surely, 2^3421113121 is an apocalyptic number.

It is an amenable number.

3421113121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3421113121 is an equidigital number, since it uses as much as digits as its factorization.

3421113121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 19.

The square root of 3421113121 is about 58490.2822783409. The cubic root of 3421113121 is about 1506.8006939261.

Adding to 3421113121 its reverse (1213111243), we get a palindrome (4634224364).

The spelling of 3421113121 in words is "three billion, four hundred twenty-one million, one hundred thirteen thousand, one hundred twenty-one".