1312033233 has 8 divisors (see below), whose sum is σ = 1999288768. Its totient is φ = 749733264.

The previous prime is 1312033223. The next prime is 1312033241. The reversal of 1312033233 is 3323302131.

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

It is not a de Polignac number, because 1312033233 - 2¹⁰ = 1312032209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 62477773 = 1312033233 / (1 + 3 + 1 + 2 + 0 + 3 + 3 + 2 + 3 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312033213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31238866 + ... + 31238907.

It is an arithmetic number, because the mean of its divisors is an integer number (249911096).

Almost surely, 2^1312033233 is an apocalyptic number.

It is an amenable number.

1312033233 is a deficient number, since it is larger than the sum of its proper divisors (687255535).

1312033233 is an equidigital number, since it uses as much as digits as its factorization.

1312033233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62477783.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 1312033233 is about 36221.9992960079. Note that the first 3 decimals coincide. The cubic root of 1312033233 is about 1094.7499781537.

Adding to 1312033233 its reverse (3323302131), we get a palindrome (4635335364).

The spelling of 1312033233 in words is "one billion, three hundred twelve million, thirty-three thousand, two hundred thirty-three".