Search a number
BaseRepresentation
bin11011100000110010000010…
…101011100011111000100001
3120212102111011211010102102022
4123200302002223203320201
5111324431010321321121
61105202345425431225
734325651034356405
oct3340620253437041
9525374154112368
10121000011120161
11356108a88a4918
12116a2742a9b515
135269337ab9b94
1421c4608b6d105
15dec74bd66aab
hex6e0c82ae3e21

121000011120161 has 2 divisors, whose sum is σ = 121000011120162. Its totient is φ = 121000011120160.

The previous prime is 121000011120143. The next prime is 121000011120223. The reversal of 121000011120161 is 161021110000121.

Adding to 121000011120161 its reverse (161021110000121), we get a palindrome (282021121120282).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87722330640400 + 33277680479761 = 9366020^2 + 5768681^2 .

It is a cyclic number.

It is not a de Polignac number, because 121000011120161 - 222 = 121000006925857 is a prime.

It is not a weakly prime, because it can be changed into another prime (121000011120101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500005560080 + 60500005560081.

It is an arithmetic number, because the mean of its divisors is an integer number (60500005560081).

Almost surely, 2121000011120161 is an apocalyptic number.

It is an amenable number.

121000011120161 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000011120161 is an equidigital number, since it uses as much as digits as its factorization.

121000011120161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 17.

The spelling of 121000011120161 in words is "one hundred twenty-one trillion, eleven million, one hundred twenty thousand, one hundred sixty-one".