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20121102130033 is a prime number
BaseRepresentation
bin1001001001100110011110…
…01001010001101101110001
32122020120002012111010100001
410210303033021101231301
510114131004121130113
6110443301241030001
74144462445111242
oct444631711215561
978216065433301
1020121102130033
116458347661823
12230b730485301
13b2c547916448
144d7c1bad8cc9
1524d5e19937dd
hex124ccf251b71

20121102130033 has 2 divisors, whose sum is σ = 20121102130034. Its totient is φ = 20121102130032.

The previous prime is 20121102130013. The next prime is 20121102130049. The reversal of 20121102130033 is 33003120112102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19412554017024 + 708548113009 = 4405968^2 + 841753^2 .

It is a cyclic number.

It is not a de Polignac number, because 20121102130033 - 25 = 20121102130001 is a prime.

It is not a weakly prime, because it can be changed into another prime (20121102130013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060551065016 + 10060551065017.

It is an arithmetic number, because the mean of its divisors is an integer number (10060551065017).

Almost surely, 220121102130033 is an apocalyptic number.

It is an amenable number.

20121102130033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121102130033 is an equidigital number, since it uses as much as digits as its factorization.

20121102130033 is an evil number, because the sum of its binary digits is even.

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

Adding to 20121102130033 its reverse (33003120112102), we get a palindrome (53124222242135).

The spelling of 20121102130033 in words is "twenty trillion, one hundred twenty-one billion, one hundred two million, one hundred thirty thousand, thirty-three".