10323445421 has 2 divisors, whose sum is σ = 10323445422. Its totient is φ = 10323445420.

The previous prime is 10323445399. The next prime is 10323445469. The reversal of 10323445421 is 12454432301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10114324900 + 209120521 = 100570^2 + 14461^2 .

It is an emirp because it is prime and its reverse (12454432301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10323445421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10323445021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5161722710 + 5161722711.

It is an arithmetic number, because the mean of its divisors is an integer number (5161722711).

Almost surely, 2^10323445421 is an apocalyptic number.

It is an amenable number.

10323445421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10323445421 is an equidigital number, since it uses as much as digits as its factorization.

10323445421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 10323445421 its reverse (12454432301), we get a palindrome (22777877722).

The spelling of 10323445421 in words is "ten billion, three hundred twenty-three million, four hundred forty-five thousand, four hundred twenty-one".