Search a number
-
+
121230233 is a prime number
BaseRepresentation
bin1110011100111…
…01001110011001
322110010010121122
413032131032121
5222013331413
620010215025
73001303625
oct716351631
9273103548
10121230233
1162482083
1234724475
131c167b87
141215a185
15a99a108
hex739d399

121230233 has 2 divisors, whose sum is σ = 121230234. Its totient is φ = 121230232.

The previous prime is 121230211. The next prime is 121230253. The reversal of 121230233 is 332032121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114661264 + 6568969 = 10708^2 + 2563^2 .

It is a cyclic number.

It is not a de Polignac number, because 121230233 - 26 = 121230169 is a prime.

It is a super-3 number, since 3×1212302333 (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (121230253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615116 + 60615117.

It is an arithmetic number, because the mean of its divisors is an integer number (60615117).

Almost surely, 2121230233 is an apocalyptic number.

It is an amenable number.

121230233 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230233 is an equidigital number, since it uses as much as digits as its factorization.

121230233 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 17.

The square root of 121230233 is about 11010.4601629541. The cubic root of 121230233 is about 494.9222515035.

Adding to 121230233 its reverse (332032121), we get a palindrome (453262354).

The spelling of 121230233 in words is "one hundred twenty-one million, two hundred thirty thousand, two hundred thirty-three".