1000013213 has 2 divisors, whose sum is σ = 1000013214. Its totient is φ = 1000013212.

The previous prime is 1000013207. The next prime is 1000013237. The reversal of 1000013213 is 3123100001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 996159844 + 3853369 = 31562^2 + 1963^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000013213 - 2²² = 995818909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000013194 and 1000013203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000313213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500006606 + 500006607.

It is an arithmetic number, because the mean of its divisors is an integer number (500006607).

Almost surely, 2^1000013213 is an apocalyptic number.

It is an amenable number.

1000013213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000013213 is an equidigital number, since it uses as much as digits as its factorization.

1000013213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1000013213 is about 31622.9855168673. The cubic root of 1000013213 is about 1000.0044043139.

Adding to 1000013213 its reverse (3123100001), we get a palindrome (4123113214).

The spelling of 1000013213 in words is "one billion, thirteen thousand, two hundred thirteen".