4113223121 has 6 divisors (see below), whose sum is σ = 4784769810. Its totient is φ = 3525619776.

The previous prime is 4113223111. The next prime is 4113223139. The reversal of 4113223121 is 1213223114.

It can be written as a sum of positive squares in only one way, i.e., 2073436225 + 2039786896 = 45535^2 + 45164^2 .

It is not a de Polignac number, because 4113223121 - 2¹⁴ = 4113206737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4113223093 and 4113223102.

It is not an unprimeable number, because it can be changed into a prime (4113223111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41971616 + ... + 41971713.

It is an arithmetic number, because the mean of its divisors is an integer number (797461635).

Almost surely, 2^4113223121 is an apocalyptic number.

It is an amenable number.

4113223121 is a deficient number, since it is larger than the sum of its proper divisors (671546689).

4113223121 is an equidigital number, since it uses as much as digits as its factorization.

4113223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83943343 (or 83943336 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 4113223121 is about 64134.4144823978. The cubic root of 4113223121 is about 1602.2394579354.

Adding to 4113223121 its reverse (1213223114), we get a palindrome (5326446235).

The spelling of 4113223121 in words is "four billion, one hundred thirteen million, two hundred twenty-three thousand, one hundred twenty-one".