10423355321 has 2 divisors, whose sum is σ = 10423355322. Its totient is φ = 10423355320.

The previous prime is 10423355281. The next prime is 10423355323. The reversal of 10423355321 is 12355332401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6734007721 + 3689347600 = 82061^2 + 60740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10423355321 is a prime.

It is a super-2 number, since 2×10423355321² (a number of 21 digits) contains 22 as substring.

Together with 10423355323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10423355323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5211677660 + 5211677661.

It is an arithmetic number, because the mean of its divisors is an integer number (5211677661).

Almost surely, 2^10423355321 is an apocalyptic number.

It is an amenable number.

10423355321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10423355321 is an equidigital number, since it uses as much as digits as its factorization.

10423355321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 10423355321 its reverse (12355332401), we get a palindrome (22778687722).

The spelling of 10423355321 in words is "ten billion, four hundred twenty-three million, three hundred fifty-five thousand, three hundred twenty-one".