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13121220210151 is a prime number
BaseRepresentation
bin1011111011110000010110…
…1010110110110111100111
31201110101011101201020102111
42332330011222312313213
53204434224333211101
643523445542221451
72522656032364654
oct276740552666747
951411141636374
1013121220210151
1141a9750814859
12157ab92124887
137424308c1c11
143350db43cc2b
1517b4a681b251
hexbef05ab6de7

13121220210151 has 2 divisors, whose sum is σ = 13121220210152. Its totient is φ = 13121220210150.

The previous prime is 13121220210121. The next prime is 13121220210173. The reversal of 13121220210151 is 15101202212131.

It is an a-pointer prime, because the next prime (13121220210173) can be obtained adding 13121220210151 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13121220210151 - 213 = 13121220201959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13121220210121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560610105075 + 6560610105076.

It is an arithmetic number, because the mean of its divisors is an integer number (6560610105076).

Almost surely, 213121220210151 is an apocalyptic number.

13121220210151 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121220210151 is an equidigital number, since it uses as much as digits as its factorization.

13121220210151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 13121220210151 its reverse (15101202212131), we get a palindrome (28222422422282).

The spelling of 13121220210151 in words is "thirteen trillion, one hundred twenty-one billion, two hundred twenty million, two hundred ten thousand, one hundred fifty-one".