1320133403243 has 4 divisors (see below), whose sum is σ = 1334966362920. Its totient is φ = 1305300443568.

The previous prime is 1320133403219. The next prime is 1320133403269. The reversal of 1320133403243 is 3423043310231.

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 1320133403243 - 2²⁸ = 1319864967787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320133403273) 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, 7416479705 + ... + 7416479882.

It is an arithmetic number, because the mean of its divisors is an integer number (333741590730).

Almost surely, 2^{1320133403243} is an apocalyptic number.

1320133403243 is a deficient number, since it is larger than the sum of its proper divisors (14832959677).

1320133403243 is an equidigital number, since it uses as much as digits as its factorization.

1320133403243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14832959676.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 1320133403243 its reverse (3423043310231), we get a palindrome (4743176713474).

The spelling of 1320133403243 in words is "one trillion, three hundred twenty billion, one hundred thirty-three million, four hundred three thousand, two hundred forty-three".