1312303433 has 8 divisors (see below), whose sum is σ = 1564983168. Its totient is φ = 1075925664.

The previous prime is 1312303411. The next prime is 1312303471. The reversal of 1312303433 is 3343032131.

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 1312303433 - 2²⁴ = 1295526217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 1312303399 and 1312303408.

It is not an unprimeable number, because it can be changed into a prime (1312303493) 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, 4075316 + ... + 4075637.

It is an arithmetic number, because the mean of its divisors is an integer number (195622896).

Almost surely, 2^1312303433 is an apocalyptic number.

It is an amenable number.

1312303433 is a deficient number, since it is larger than the sum of its proper divisors (252679735).

1312303433 is an equidigital number, since it uses as much as digits as its factorization.

1312303433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8150983.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 1312303433 is about 36225.7288815560. The cubic root of 1312303433 is about 1094.8251238978.

Adding to 1312303433 its reverse (3343032131), we get a palindrome (4655335564).

The spelling of 1312303433 in words is "one billion, three hundred twelve million, three hundred three thousand, four hundred thirty-three".