1330121213 has 2 divisors, whose sum is σ = 1330121214. Its totient is φ = 1330121212.

The previous prime is 1330121203. The next prime is 1330121227. The reversal of 1330121213 is 3121210331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1107425284 + 222695929 = 33278^2 + 14923^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330121213 - 2¹⁴ = 1330104829 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1330121191 and 1330121200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330121203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665060606 + 665060607.

It is an arithmetic number, because the mean of its divisors is an integer number (665060607).

Almost surely, 2^1330121213 is an apocalyptic number.

It is an amenable number.

1330121213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330121213 is an equidigital number, since it uses as much as digits as its factorization.

1330121213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1330121213 is about 36470.8268757373. The cubic root of 1330121213 is about 1099.7578566182.

Adding to 1330121213 its reverse (3121210331), we get a palindrome (4451331544).

The spelling of 1330121213 in words is "one billion, three hundred thirty million, one hundred twenty-one thousand, two hundred thirteen".