1320401141 has 2 divisors, whose sum is σ = 1320401142. Its totient is φ = 1320401140.

The previous prime is 1320401111. The next prime is 1320401177. The reversal of 1320401141 is 1411040231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1297800625 + 22600516 = 36025^2 + 4754^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320401141 - 2¹⁴ = 1320384757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320401111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660200570 + 660200571.

It is an arithmetic number, because the mean of its divisors is an integer number (660200571).

Almost surely, 2^1320401141 is an apocalyptic number.

It is an amenable number.

1320401141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320401141 is an equidigital number, since it uses as much as digits as its factorization.

1320401141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1320401141 is about 36337.3243511407. The cubic root of 1320401141 is about 1097.0724194738.

Adding to 1320401141 its reverse (1411040231), we get a palindrome (2731441372).

The spelling of 1320401141 in words is "one billion, three hundred twenty million, four hundred one thousand, one hundred forty-one".