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11242001 is a prime number
BaseRepresentation
bin101010111000…
…101000010001
3210011011010102
4222320220101
510334221001
61040542145
7164361341
oct52705021
923134112
1011242001
116389311
123921955
132437c94
1416c8d21
15ec0e6b
hexab8a11

11242001 has 2 divisors, whose sum is σ = 11242002. Its totient is φ = 11242000.

The previous prime is 11241973. The next prime is 11242003. The reversal of 11242001 is 10024211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10240000 + 1002001 = 3200^2 + 1001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11242001 is a prime.

It is a Sophie Germain prime.

Together with 11242003, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11242003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5621000 + 5621001.

It is an arithmetic number, because the mean of its divisors is an integer number (5621001).

Almost surely, 211242001 is an apocalyptic number.

It is an amenable number.

11242001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11242001 is an equidigital number, since it uses as much as digits as its factorization.

11242001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 11242001 is about 3352.9093336981. The cubic root of 11242001 is about 224.0171184303.

Adding to 11242001 its reverse (10024211), we get a palindrome (21266212).

It can be divided in two parts, 1124 and 2001, that added together give a 5-th power (3125 = 55).

The spelling of 11242001 in words is "eleven million, two hundred forty-two thousand, one".