1320231013099 has 4 divisors (see below), whose sum is σ = 1322114367600. Its totient is φ = 1318347658600.

The previous prime is 1320231013091. The next prime is 1320231013117. The reversal of 1320231013099 is 9903101320231.

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 1320231013099 - 2³ = 1320231013091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320231013091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941676199 + ... + 941677600.

It is an arithmetic number, because the mean of its divisors is an integer number (330528591900).

Almost surely, 2^{1320231013099} is an apocalyptic number.

1320231013099 is a deficient number, since it is larger than the sum of its proper divisors (1883354501).

1320231013099 is an equidigital number, since it uses as much as digits as its factorization.

1320231013099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883354500.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 1320231013099 in words is "one trillion, three hundred twenty billion, two hundred thirty-one million, thirteen thousand, ninety-nine".