1008001213 has 4 divisors (see below), whose sum is σ = 1067295420. Its totient is φ = 948707008.

The previous prime is 1008001193. The next prime is 1008001217. The reversal of 1008001213 is 3121008001.

1008001213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3121008001 = 19 ⋅164263579.

It can be written as a sum of positive squares in 2 ways, for example, as 806446404 + 201554809 = 28398^2 + 14197^2 .

It is a cyclic number.

It is not a de Polignac number, because 1008001213 - 2⁹ = 1008000701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1008001217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29647078 + ... + 29647111.

It is an arithmetic number, because the mean of its divisors is an integer number (266823855).

Almost surely, 2^1008001213 is an apocalyptic number.

It is an amenable number.

1008001213 is a deficient number, since it is larger than the sum of its proper divisors (59294207).

1008001213 is an equidigital number, since it uses as much as digits as its factorization.

1008001213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59294206.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1008001213 is about 31749.0348357237. The cubic root of 1008001213 is about 1002.6599891839.

Adding to 1008001213 its reverse (3121008001), we get a palindrome (4129009214).

The spelling of 1008001213 in words is "one billion, eight million, one thousand, two hundred thirteen".