1312231030303 has 4 divisors (see below), whose sum is σ = 1312921316808. Its totient is φ = 1311540743800.

The previous prime is 1312231030301. The next prime is 1312231030333. The reversal of 1312231030303 is 3030301322131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312231030303 - 2¹ = 1312231030301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312231030301) 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, 345140401 + ... + 345144202.

It is an arithmetic number, because the mean of its divisors is an integer number (328230329202).

Almost surely, 2^{1312231030303} is an apocalyptic number.

1312231030303 is a deficient number, since it is larger than the sum of its proper divisors (690286505).

1312231030303 is an equidigital number, since it uses as much as digits as its factorization.

1312231030303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690286504.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1312231030303 its reverse (3030301322131), we get a palindrome (4342532352434).

The spelling of 1312231030303 in words is "one trillion, three hundred twelve billion, two hundred thirty-one million, thirty thousand, three hundred three".