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121121233 is a prime number
BaseRepresentation
bin1110011100000…
…10100111010001
322102220121002121
413032002213101
5222001334413
620004014241
73000341062
oct716024721
9272817077
10121121233
11624081a2
1234691381
131c12a38c
141212c569
15a977b8d
hex73829d1

121121233 has 2 divisors, whose sum is σ = 121121234. Its totient is φ = 121121232.

The previous prime is 121121227. The next prime is 121121237. The reversal of 121121233 is 332121121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105534529 + 15586704 = 10273^2 + 3948^2 .

It is a cyclic number.

It is not a de Polignac number, because 121121233 - 25 = 121121201 is a prime.

It is not a weakly prime, because it can be changed into another prime (121121237) 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, 60560616 + 60560617.

It is an arithmetic number, because the mean of its divisors is an integer number (60560617).

Almost surely, 2121121233 is an apocalyptic number.

It is an amenable number.

121121233 is a deficient number, since it is larger than the sum of its proper divisors (1).

121121233 is an equidigital number, since it uses as much as digits as its factorization.

121121233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 16.

The square root of 121121233 is about 11005.5092112996. The cubic root of 121121233 is about 494.7738762448.

Adding to 121121233 its reverse (332121121), we get a palindrome (453242354).

The spelling of 121121233 in words is "one hundred twenty-one million, one hundred twenty-one thousand, two hundred thirty-three".