1343110121 has 4 divisors (see below), whose sum is σ = 1347959172. Its totient is φ = 1338261072.

The previous prime is 1343110079. The next prime is 1343110127. The reversal of 1343110121 is 1210113431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 634485721 + 708624400 = 25189^2 + 26620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343110121 - 2²² = 1338915817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1343110121.

It is not an unprimeable number, because it can be changed into a prime (1343110127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2424110 + ... + 2424663.

It is an arithmetic number, because the mean of its divisors is an integer number (336989793).

Almost surely, 2^1343110121 is an apocalyptic number.

It is an amenable number.

1343110121 is a deficient number, since it is larger than the sum of its proper divisors (4849051).

1343110121 is an equidigital number, since it uses as much as digits as its factorization.

1343110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4849050.

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

The square root of 1343110121 is about 36648.4668301417. The cubic root of 1343110121 is about 1103.3260544077.

Adding to 1343110121 its reverse (1210113431), we get a palindrome (2553223552).

The spelling of 1343110121 in words is "one billion, three hundred forty-three million, one hundred ten thousand, one hundred twenty-one".