1343010121 has 4 divisors (see below), whose sum is σ = 1345949332. Its totient is φ = 1340070912.

The previous prime is 1343010107. The next prime is 1343010169. The reversal of 1343010121 is 1210103431.

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 1026561600 + 316448521 = 32040^2 + 17789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1343010121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1343010095 and 1343010104.

It is not an unprimeable number, because it can be changed into a prime (1343013121) 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, 1468920 + ... + 1469833.

It is an arithmetic number, because the mean of its divisors is an integer number (336487333).

Almost surely, 2^1343010121 is an apocalyptic number.

It is an amenable number.

1343010121 is a deficient number, since it is larger than the sum of its proper divisors (2939211).

1343010121 is an equidigital number, since it uses as much as digits as its factorization.

1343010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939210.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1343010121 is about 36647.1024911929. The cubic root of 1343010121 is about 1103.2986713604.

Adding to 1343010121 its reverse (1210103431), we get a palindrome (2553113552).

The spelling of 1343010121 in words is "one billion, three hundred forty-three million, ten thousand, one hundred twenty-one".