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10123123321 is a prime number
BaseRepresentation
bin10010110110110001…
…01001101001111001
3222010111102221120101
421123120221221321
5131213004421241
64352301355401
7505601062033
oct113330515171
928114387511
1010123123321
11432526a423
121b66268b61
13c54368bcc
146c0652c53
153e3acde31
hex25b629a79

10123123321 has 2 divisors, whose sum is σ = 10123123322. Its totient is φ = 10123123320.

The previous prime is 10123123289. The next prime is 10123123333. The reversal of 10123123321 is 12332132101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7914593296 + 2208530025 = 88964^2 + 46995^2 .

It is an emirp because it is prime and its reverse (12332132101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10123123321 - 25 = 10123123289 is a prime.

It is not a weakly prime, because it can be changed into another prime (10123193321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061561660 + 5061561661.

It is an arithmetic number, because the mean of its divisors is an integer number (5061561661).

Almost surely, 210123123321 is an apocalyptic number.

It is an amenable number.

10123123321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123123321 is an equidigital number, since it uses as much as digits as its factorization.

10123123321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10123123321 its reverse (12332132101), we get a palindrome (22455255422).

The spelling of 10123123321 in words is "ten billion, one hundred twenty-three million, one hundred twenty-three thousand, three hundred twenty-one".