1320512101 has 2 divisors, whose sum is σ = 1320512102. Its totient is φ = 1320512100.

The previous prime is 1320512033. The next prime is 1320512113. The reversal of 1320512101 is 1012150231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1084121476 + 236390625 = 32926^2 + 15375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320512101 - 2²³ = 1312123493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320512161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660256050 + 660256051.

It is an arithmetic number, because the mean of its divisors is an integer number (660256051).

Almost surely, 2^1320512101 is an apocalyptic number.

It is an amenable number.

1320512101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320512101 is an equidigital number, since it uses as much as digits as its factorization.

1320512101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1320512101 is about 36338.8511238316. The cubic root of 1320512101 is about 1097.1031494649.

Adding to 1320512101 its reverse (1012150231), we get a palindrome (2332662332).

The spelling of 1320512101 in words is "one billion, three hundred twenty million, five hundred twelve thousand, one hundred one".