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BaseRepresentation
bin100101000001001…
…0000100110111101
310012120020112112002
41022002100212331
510020434400201
6323130352045
742531505112
oct11202204675
93176215462
101242106301
11588155937
122a7b8b625
1316a447957
15740a676b
hex4a0909bd

1242106301 has 2 divisors, whose sum is σ = 1242106302. Its totient is φ = 1242106300.

The previous prime is 1242106289. The next prime is 1242106379. The reversal of 1242106301 is 1036012421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 771172900 + 470933401 = 27770^2 + 21701^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242106301 - 218 = 1241844157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242106601) 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, 621053150 + 621053151.

It is an arithmetic number, because the mean of its divisors is an integer number (621053151).

Almost surely, 21242106301 is an apocalyptic number.

It is an amenable number.

1242106301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242106301 is an equidigital number, since it uses as much as digits as its factorization.

1242106301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1242106301 is about 35243.5284981513. The cubic root of 1242106301 is about 1074.9450272231.

Adding to 1242106301 its reverse (1036012421), we get a palindrome (2278118722).

The spelling of 1242106301 in words is "one billion, two hundred forty-two million, one hundred six thousand, three hundred one".