1342203409 has 2 divisors, whose sum is σ = 1342203410. Its totient is φ = 1342203408.

The previous prime is 1342203389. The next prime is 1342203427. The reversal of 1342203409 is 9043022431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1332469009 + 9734400 = 36503^2 + 3120^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342203409 - 2²⁵ = 1308648977 is a prime.

It is a super-2 number, since 2×1342203409² = 3603019982262442562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1342206409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671101704 + 671101705.

It is an arithmetic number, because the mean of its divisors is an integer number (671101705).

Almost surely, 2^1342203409 is an apocalyptic number.

It is an amenable number.

1342203409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342203409 is an equidigital number, since it uses as much as digits as its factorization.

1342203409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1342203409 is about 36636.0943469688. The cubic root of 1342203409 is about 1103.0777193035.

The spelling of 1342203409 in words is "one billion, three hundred forty-two million, two hundred three thousand, four hundred nine".