1413343121 has 4 divisors (see below), whose sum is σ = 1414197732. Its totient is φ = 1412488512.

The previous prime is 1413343109. The next prime is 1413343147. The reversal of 1413343121 is 1213433141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1213433141 = 20789 ⋅58369.

It can be written as a sum of positive squares in 2 ways, for example, as 1064064400 + 349278721 = 32620^2 + 18689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1413343121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1415343121) 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 in 3 ways as a sum of consecutive naturals, for example, 424820 + ... + 428133.

It is an arithmetic number, because the mean of its divisors is an integer number (353549433).

Almost surely, 2^1413343121 is an apocalyptic number.

It is an amenable number.

1413343121 is a deficient number, since it is larger than the sum of its proper divisors (854611).

1413343121 is an equidigital number, since it uses as much as digits as its factorization.

1413343121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854610.

The product of its digits is 864, while the sum is 23.

The square root of 1413343121 is about 37594.4559875522. The cubic root of 1413343121 is about 1122.2317111206.

Adding to 1413343121 its reverse (1213433141), we get a palindrome (2626776262).

The spelling of 1413343121 in words is "one billion, four hundred thirteen million, three hundred forty-three thousand, one hundred twenty-one".