1213353103 has 2 divisors, whose sum is σ = 1213353104. Its totient is φ = 1213353102.

The previous prime is 1213353083. The next prime is 1213353107. The reversal of 1213353103 is 3013533121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3013533121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213353103 - 2¹³ = 1213344911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213353107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606676551 + 606676552.

It is an arithmetic number, because the mean of its divisors is an integer number (606676552).

Almost surely, 2^1213353103 is an apocalyptic number.

1213353103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213353103 is an equidigital number, since it uses as much as digits as its factorization.

1213353103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 1213353103 is about 34833.2183841804. The cubic root of 1213353103 is about 1066.5856468519.

Adding to 1213353103 its reverse (3013533121), we get a palindrome (4226886224).

The spelling of 1213353103 in words is "one billion, two hundred thirteen million, three hundred fifty-three thousand, one hundred three".