1343321121 has 16 divisors (see below), whose sum is σ = 1811139264. Its totient is φ = 885556224.

The previous prime is 1343321117. The next prime is 1343321131. The reversal of 1343321121 is 1211233431.

It is not a de Polignac number, because 1343321121 - 2² = 1343321117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1343321101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186825 + ... + 193881.

It is an arithmetic number, because the mean of its divisors is an integer number (113196204).

Almost surely, 2^1343321121 is an apocalyptic number.

It is an amenable number.

1343321121 is a deficient number, since it is larger than the sum of its proper divisors (467818143).

1343321121 is a wasteful number, since it uses less digits than its factorization.

1343321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7760.

The product of its digits is 432, while the sum is 21.

The square root of 1343321121 is about 36651.3454186882. The cubic root of 1343321121 is about 1103.3838281782.

Adding to 1343321121 its reverse (1211233431), we get a palindrome (2554554552).

The spelling of 1343321121 in words is "one billion, three hundred forty-three million, three hundred twenty-one thousand, one hundred twenty-one".