4223451213 has 20 divisors (see below), whose sum is σ = 6311096220. Its totient is φ = 2814746112.

The previous prime is 4223451143. The next prime is 4223451217. The reversal of 4223451213 is 3121543224.

It can be written as a sum of positive squares in 2 ways, for example, as 2055896964 + 2167554249 = 45342^2 + 46557^2 .

It is not a de Polignac number, because 4223451213 - 2¹² = 4223447117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223451217) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 341331 + ... + 353487.

It is an arithmetic number, because the mean of its divisors is an integer number (315554811).

Almost surely, 2^4223451213 is an apocalyptic number.

It is an amenable number.

4223451213 is a deficient number, since it is larger than the sum of its proper divisors (2087645007).

4223451213 is a wasteful number, since it uses less digits than its factorization.

4223451213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16458 (or 16449 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 4223451213 is about 64988.0851618202. The cubic root of 4223451213 is about 1616.4259995355.

Adding to 4223451213 its reverse (3121543224), we get a palindrome (7344994437).

The spelling of 4223451213 in words is "four billion, two hundred twenty-three million, four hundred fifty-one thousand, two hundred thirteen".