1312232003 has 4 divisors (see below), whose sum is σ = 1312315200. Its totient is φ = 1312148808.

The previous prime is 1312231997. The next prime is 1312232083. The reversal of 1312232003 is 3002322131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3002322131 = 31 ⋅96849101.

It is a cyclic number.

It is not a de Polignac number, because 1312232003 - 2¹² = 1312227907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312232083) 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, 9875 + ... + 52172.

It is an arithmetic number, because the mean of its divisors is an integer number (328078800).

Almost surely, 2^1312232003 is an apocalyptic number.

1312232003 is a deficient number, since it is larger than the sum of its proper divisors (83197).

1312232003 is an equidigital number, since it uses as much as digits as its factorization.

1312232003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83196.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1312232003 is about 36224.7429666520. The cubic root of 1312232003 is about 1094.8052593920.

Adding to 1312232003 its reverse (3002322131), we get a palindrome (4314554134).

The spelling of 1312232003 in words is "one billion, three hundred twelve million, two hundred thirty-two thousand, three".