1320020420333 has 2 divisors, whose sum is σ = 1320020420334. Its totient is φ = 1320020420332.

The previous prime is 1320020420291. The next prime is 1320020420353. The reversal of 1320020420333 is 3330240200231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1264304594569 + 55715825764 = 1124413^2 + 236042^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320020420333 - 2¹⁸ = 1320020158189 is a prime.

It is a super-2 number, since 2×1320020420333² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320020420299 and 1320020420308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320020420353) 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 as a sum of consecutive naturals, namely, 660010210166 + 660010210167.

It is an arithmetic number, because the mean of its divisors is an integer number (660010210167).

Almost surely, 2^{1320020420333} is an apocalyptic number.

It is an amenable number.

1320020420333 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320020420333 is an equidigital number, since it uses as much as digits as its factorization.

1320020420333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 1320020420333 its reverse (3330240200231), we get a palindrome (4650260620564).

The spelling of 1320020420333 in words is "one trillion, three hundred twenty billion, twenty million, four hundred twenty thousand, three hundred thirty-three".