1320111413 has 2 divisors, whose sum is σ = 1320111414. Its totient is φ = 1320111412.

The previous prime is 1320111383. The next prime is 1320111433. The reversal of 1320111413 is 3141110231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 829843249 + 490268164 = 28807^2 + 22142^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320111413 - 2²⁰ = 1319062837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320111391 and 1320111400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320111433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660055706 + 660055707.

It is an arithmetic number, because the mean of its divisors is an integer number (660055707).

Almost surely, 2^1320111413 is an apocalyptic number.

It is an amenable number.

1320111413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320111413 is an equidigital number, since it uses as much as digits as its factorization.

1320111413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1320111413 is about 36333.3374877673. The cubic root of 1320111413 is about 1096.9921721815.

Adding to 1320111413 its reverse (3141110231), we get a palindrome (4461221644).

The spelling of 1320111413 in words is "one billion, three hundred twenty million, one hundred eleven thousand, four hundred thirteen".