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121231230301 is a prime number
BaseRepresentation
bin111000011100111110…
…0011100010101011101
3102120220210221120221201
41300321330130111131
53441240143332201
6131405353555501
711521136312056
oct1607174342535
9376823846851
10121231230301
1147460961725
121b5b4115b91
13b5802c47cc
145c20a8572d
15324810e801
hex1c39f1c55d

121231230301 has 2 divisors, whose sum is σ = 121231230302. Its totient is φ = 121231230300.

The previous prime is 121231230293. The next prime is 121231230317. The reversal of 121231230301 is 103032132121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112338928900 + 8892301401 = 335170^2 + 94299^2 .

It is an emirp because it is prime and its reverse (103032132121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121231230301 - 23 = 121231230293 is a prime.

It is a super-2 number, since 2×1212312303012 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121231230401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615615150 + 60615615151.

It is an arithmetic number, because the mean of its divisors is an integer number (60615615151).

Almost surely, 2121231230301 is an apocalyptic number.

It is an amenable number.

121231230301 is a deficient number, since it is larger than the sum of its proper divisors (1).

121231230301 is an equidigital number, since it uses as much as digits as its factorization.

121231230301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121231230301 its reverse (103032132121), we get a palindrome (224263362422).

The spelling of 121231230301 in words is "one hundred twenty-one billion, two hundred thirty-one million, two hundred thirty thousand, three hundred one".