1223531130343 has 2 divisors, whose sum is σ = 1223531130344. Its totient is φ = 1223531130342.

The previous prime is 1223531130329. The next prime is 1223531130397. The reversal of 1223531130343 is 3430311353221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223531130343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223531130313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611765565171 + 611765565172.

It is an arithmetic number, because the mean of its divisors is an integer number (611765565172).

Almost surely, 2^{1223531130343} is an apocalyptic number.

1223531130343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223531130343 is an equidigital number, since it uses as much as digits as its factorization.

1223531130343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 1223531130343 its reverse (3430311353221), we get a palindrome (4653842483564).

The spelling of 1223531130343 in words is "one trillion, two hundred twenty-three billion, five hundred thirty-one million, one hundred thirty thousand, three hundred forty-three".