1213033013 has 2 divisors, whose sum is σ = 1213033014. Its totient is φ = 1213033012.

The previous prime is 1213033009. The next prime is 1213033027. The reversal of 1213033013 is 3103303121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 886074289 + 326958724 = 29767^2 + 18082^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213033013 - 2² = 1213033009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213032982 and 1213033000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213033033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606516506 + 606516507.

It is an arithmetic number, because the mean of its divisors is an integer number (606516507).

Almost surely, 2^1213033013 is an apocalyptic number.

It is an amenable number.

1213033013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213033013 is an equidigital number, since it uses as much as digits as its factorization.

1213033013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1213033013 is about 34828.6234726554. The cubic root of 1213033013 is about 1066.4918479885.

Adding to 1213033013 its reverse (3103303121), we get a palindrome (4316336134).

The spelling of 1213033013 in words is "one billion, two hundred thirteen million, thirty-three thousand, thirteen".