1233313013 has 4 divisors (see below), whose sum is σ = 1233959628. Its totient is φ = 1232666400.

The previous prime is 1233313007. The next prime is 1233313031. The reversal of 1233313013 is 3103133321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3103133321 = 683 ⋅4543387.

It can be written as a sum of positive squares in 2 ways, for example, as 587238289 + 646074724 = 24233^2 + 25418^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233313013 - 2⁸ = 1233312757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233313513) 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, 320438 + ... + 324263.

It is an arithmetic number, because the mean of its divisors is an integer number (308489907).

Almost surely, 2^1233313013 is an apocalyptic number.

It is an amenable number.

1233313013 is a deficient number, since it is larger than the sum of its proper divisors (646615).

1233313013 is an equidigital number, since it uses as much as digits as its factorization.

1233313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646614.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1233313013 is about 35118.5565335479. The cubic root of 1233313013 is about 1072.4023852924.

Adding to 1233313013 its reverse (3103133321), we get a palindrome (4336446334).

The spelling of 1233313013 in words is "one billion, two hundred thirty-three million, three hundred thirteen thousand, thirteen".