1213231340303 has 2 divisors, whose sum is σ = 1213231340304. Its totient is φ = 1213231340302.

The previous prime is 1213231340297. The next prime is 1213231340339. The reversal of 1213231340303 is 3030431323121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213231340303 - 2⁴ = 1213231340287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213231340393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606615670151 + 606615670152.

It is an arithmetic number, because the mean of its divisors is an integer number (606615670152).

Almost surely, 2^{1213231340303} is an apocalyptic number.

1213231340303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213231340303 is an equidigital number, since it uses as much as digits as its factorization.

1213231340303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1213231340303 its reverse (3030431323121), we get a palindrome (4243662663424).

The spelling of 1213231340303 in words is "one trillion, two hundred thirteen billion, two hundred thirty-one million, three hundred forty thousand, three hundred three".