1231430322323 has 2 divisors, whose sum is σ = 1231430322324. Its totient is φ = 1231430322322.

The previous prime is 1231430322319. The next prime is 1231430322371. The reversal of 1231430322323 is 3232230341321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1231430322323 - 2² = 1231430322319 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231430322823) 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, 615715161161 + 615715161162.

It is an arithmetic number, because the mean of its divisors is an integer number (615715161162).

Almost surely, 2^{1231430322323} is an apocalyptic number.

1231430322323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231430322323 is an equidigital number, since it uses as much as digits as its factorization.

1231430322323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 1231430322323 its reverse (3232230341321), we get a palindrome (4463660663644).

The spelling of 1231430322323 in words is "one trillion, two hundred thirty-one billion, four hundred thirty million, three hundred twenty-two thousand, three hundred twenty-three".