4000124213 has 2 divisors, whose sum is σ = 4000124214. Its totient is φ = 4000124212.

The previous prime is 4000124209. The next prime is 4000124237. The reversal of 4000124213 is 3124210004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2991871204 + 1008253009 = 54698^2 + 31753^2 .

It is a cyclic number.

It is not a de Polignac number, because 4000124213 - 2² = 4000124209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4000124191 and 4000124200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000124263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000062106 + 2000062107.

It is an arithmetic number, because the mean of its divisors is an integer number (2000062107).

Almost surely, 2^4000124213 is an apocalyptic number.

It is an amenable number.

4000124213 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000124213 is an equidigital number, since it uses as much as digits as its factorization.

4000124213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4000124213 is about 63246.5351857317. The cubic root of 4000124213 is about 1587.4174831187.

Adding to 4000124213 its reverse (3124210004), we get a palindrome (7124334217).

The spelling of 4000124213 in words is "four billion, one hundred twenty-four thousand, two hundred thirteen".