1320231331303 has 2 divisors, whose sum is σ = 1320231331304. Its totient is φ = 1320231331302.

The previous prime is 1320231331273. The next prime is 1320231331327. The reversal of 1320231331303 is 3031331320231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1320231331303 - 2³³ = 1311641396711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320231331403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660115665651 + 660115665652.

It is an arithmetic number, because the mean of its divisors is an integer number (660115665652).

Almost surely, 2^{1320231331303} is an apocalyptic number.

1320231331303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320231331303 is an equidigital number, since it uses as much as digits as its factorization.

1320231331303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 1320231331303 its reverse (3031331320231), we get a palindrome (4351562651534).

The spelling of 1320231331303 in words is "one trillion, three hundred twenty billion, two hundred thirty-one million, three hundred thirty-one thousand, three hundred three".