Search a number
-
+
120421424801 is a prime number
BaseRepresentation
bin111000000100110101…
…1010001111010100001
3102111211101011012122102
41300021223101322201
53433110341043201
6131153145020145
711462104136066
oct1601153217241
9374741135572
10120421424801
1147085833887
121b408a84655
13b4815ba762
145b852c6c6d
1531ebe9c26b
hex1c09ad1ea1

120421424801 has 2 divisors, whose sum is σ = 120421424802. Its totient is φ = 120421424800.

The previous prime is 120421424789. The next prime is 120421424803. The reversal of 120421424801 is 108424124021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98457888400 + 21963536401 = 313780^2 + 148201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120421424801 is a prime.

It is a super-2 number, since 2×1204214248012 (a number of 23 digits) contains 22 as substring.

Together with 120421424803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120421424803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60210712400 + 60210712401.

It is an arithmetic number, because the mean of its divisors is an integer number (60210712401).

Almost surely, 2120421424801 is an apocalyptic number.

It is an amenable number.

120421424801 is a deficient number, since it is larger than the sum of its proper divisors (1).

120421424801 is an equidigital number, since it uses as much as digits as its factorization.

120421424801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4096, while the sum is 29.

Adding to 120421424801 its reverse (108424124021), we get a palindrome (228845548822).

The spelling of 120421424801 in words is "one hundred twenty billion, four hundred twenty-one million, four hundred twenty-four thousand, eight hundred one".