1213231340407 has 2 divisors, whose sum is σ = 1213231340408. Its totient is φ = 1213231340406.

The previous prime is 1213231340393. The next prime is 1213231340417. The reversal of 1213231340407 is 7040431323121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213231340407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213231340417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606615670203 + 606615670204.

It is an arithmetic number, because the mean of its divisors is an integer number (606615670204).

Almost surely, 2^{1213231340407} is an apocalyptic number.

1213231340407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213231340407 is an equidigital number, since it uses as much as digits as its factorization.

1213231340407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

Adding to 1213231340407 its reverse (7040431323121), we get a palindrome (8253662663528).

The spelling of 1213231340407 in words is "one trillion, two hundred thirteen billion, two hundred thirty-one million, three hundred forty thousand, four hundred seven".