1213536313 has 8 divisors (see below), whose sum is σ = 1401732000. Its totient is φ = 1038319680.

The previous prime is 1213536293. The next prime is 1213536319. The reversal of 1213536313 is 3136353121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213536313 - 2⁹ = 1213535801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213536319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3244563 + ... + 3244936.

It is an arithmetic number, because the mean of its divisors is an integer number (175216500).

Almost surely, 2^1213536313 is an apocalyptic number.

It is an amenable number.

1213536313 is a deficient number, since it is larger than the sum of its proper divisors (188195687).

1213536313 is a wasteful number, since it uses less digits than its factorization.

1213536313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489527.

The product of its digits is 4860, while the sum is 28.

The square root of 1213536313 is about 34835.8481022064. The cubic root of 1213536313 is about 1066.6393271096.

Adding to 1213536313 its reverse (3136353121), we get a palindrome (4349889434).

The spelling of 1213536313 in words is "one billion, two hundred thirteen million, five hundred thirty-six thousand, three hundred thirteen".