1213133303 has 2 divisors, whose sum is σ = 1213133304. Its totient is φ = 1213133302.

The previous prime is 1213133293. The next prime is 1213133333. The reversal of 1213133303 is 3033313121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213133303 - 2⁴ = 1213133287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213133333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606566651 + 606566652.

It is an arithmetic number, because the mean of its divisors is an integer number (606566652).

Almost surely, 2^1213133303 is an apocalyptic number.

1213133303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213133303 is an equidigital number, since it uses as much as digits as its factorization.

1213133303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1213133303 is about 34830.0632069481. The cubic root of 1213133303 is about 1066.5212386478.

Adding to 1213133303 its reverse (3033313121), we get a palindrome (4246446424).

The spelling of 1213133303 in words is "one billion, two hundred thirteen million, one hundred thirty-three thousand, three hundred three".