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10121000213 is a prime number
BaseRepresentation
bin10010110110100001…
…00011010100010101
3222010100110002012202
421123100203110111
5131211434001323
64352144054245
7505544040152
oct113320432425
928110402182
1010121000213
11432404a295
121b65604385
13c53aa472c
146c025d229
153e380ed28
hex25b423515

10121000213 has 2 divisors, whose sum is σ = 10121000214. Its totient is φ = 10121000212.

The previous prime is 10121000207. The next prime is 10121000221. The reversal of 10121000213 is 31200012101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6654970084 + 3466030129 = 81578^2 + 58873^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121000213 - 28 = 10120999957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10121000194 and 10121000203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10121000413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060500106 + 5060500107.

It is an arithmetic number, because the mean of its divisors is an integer number (5060500107).

Almost surely, 210121000213 is an apocalyptic number.

It is an amenable number.

10121000213 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121000213 is an equidigital number, since it uses as much as digits as its factorization.

10121000213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10121000213 its reverse (31200012101), we get a palindrome (41321012314).

The spelling of 10121000213 in words is "ten billion, one hundred twenty-one million, two hundred thirteen", and thus it is an aban number.