1343203453 has 2 divisors, whose sum is σ = 1343203454. Its totient is φ = 1343203452.

The previous prime is 1343203451. The next prime is 1343203457. The reversal of 1343203453 is 3543023431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1196260569 + 146942884 = 34587^2 + 12122^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343203453 - 2¹ = 1343203451 is a prime.

It is a super-2 number, since 2×1343203453² = 3608391032302246418, which contains 22 as substring.

Together with 1343203451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1343203451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671601726 + 671601727.

It is an arithmetic number, because the mean of its divisors is an integer number (671601727).

Almost surely, 2^1343203453 is an apocalyptic number.

It is an amenable number.

1343203453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343203453 is an equidigital number, since it uses as much as digits as its factorization.

1343203453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 1343203453 is about 36649.7401491470. The cubic root of 1343203453 is about 1103.3516103271.

Adding to 1343203453 its reverse (3543023431), we get a palindrome (4886226884).

The spelling of 1343203453 in words is "one billion, three hundred forty-three million, two hundred three thousand, four hundred fifty-three".