1343201009 has 2 divisors, whose sum is σ = 1343201010. Its totient is φ = 1343201008.

The previous prime is 1343200997. The next prime is 1343201023. The reversal of 1343201009 is 9001023431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885241009 + 457960000 = 29753^2 + 21400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343201009 - 2¹² = 1343196913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1343201039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671600504 + 671600505.

It is an arithmetic number, because the mean of its divisors is an integer number (671600505).

Almost surely, 2^1343201009 is an apocalyptic number.

It is an amenable number.

1343201009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343201009 is an equidigital number, since it uses as much as digits as its factorization.

1343201009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1343201009 is about 36649.7068064671. The cubic root of 1343201009 is about 1103.3509411327.

The spelling of 1343201009 in words is "one billion, three hundred forty-three million, two hundred one thousand, nine".