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23230121 is a prime number
BaseRepresentation
bin101100010011…
…1011010101001
31121201012201212
41120213122221
521421330441
62145522505
7401311205
oct130473251
947635655
1023230121
1112127152
127943435
134a74745
143129b05
15208ceeb
hex16276a9

23230121 has 2 divisors, whose sum is σ = 23230122. Its totient is φ = 23230120.

The previous prime is 23230111. The next prime is 23230127. The reversal of 23230121 is 12103232.

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., 14592400 + 8637721 = 3820^2 + 2939^2 .

It is a cyclic number.

It is not a de Polignac number, because 23230121 - 26 = 23230057 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23230096 and 23230105.

It is not a weakly prime, because it can be changed into another prime (23230127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615060 + 11615061.

It is an arithmetic number, because the mean of its divisors is an integer number (11615061).

Almost surely, 223230121 is an apocalyptic number.

It is an amenable number.

23230121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23230121 is an equidigital number, since it uses as much as digits as its factorization.

23230121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23230121 is about 4819.7635834136. The cubic root of 23230121 is about 285.3320066405.

Adding to 23230121 its reverse (12103232), we get a palindrome (35333353).

The spelling of 23230121 in words is "twenty-three million, two hundred thirty thousand, one hundred twenty-one".