23320312143421 has 2 divisors, whose sum is σ = 23320312143422. Its totient is φ = 23320312143420.

The previous prime is 23320312143409. The next prime is 23320312143431. The reversal of 23320312143421 is 12434121302332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13515836079321 + 9804476064100 = 3676389^2 + 3131210^2 .

It is a cyclic number.

It is not a de Polignac number, because 23320312143421 - 2⁵ = 23320312143389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23320312143431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660156071710 + 11660156071711.

It is an arithmetic number, because the mean of its divisors is an integer number (11660156071711).

Almost surely, 2^{23320312143421} is an apocalyptic number.

It is an amenable number.

23320312143421 is a deficient number, since it is larger than the sum of its proper divisors (1).

23320312143421 is an equidigital number, since it uses as much as digits as its factorization.

23320312143421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 23320312143421 its reverse (12434121302332), we get a palindrome (35754433445753).

The spelling of 23320312143421 in words is "twenty-three trillion, three hundred twenty billion, three hundred twelve million, one hundred forty-three thousand, four hundred twenty-one".