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12420553001 is a prime number
BaseRepresentation
bin10111001000101001…
…01001100100101001
31012001121110110121112
423210110221210221
5200414130144001
65412251320105
7616535646533
oct134424514451
935047413545
1012420553001
1152a409533a
1224a7750035
13122c32115c
1485b812853
154ca643cbb
hex2e4529929

12420553001 has 2 divisors, whose sum is σ = 12420553002. Its totient is φ = 12420553000.

The previous prime is 12420552913. The next prime is 12420553037. The reversal of 12420553001 is 10035502421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7233672601 + 5186880400 = 85051^2 + 72020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12420553001 is a prime.

It is not a weakly prime, because it can be changed into another prime (12420555001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210276500 + 6210276501.

It is an arithmetic number, because the mean of its divisors is an integer number (6210276501).

Almost surely, 212420553001 is an apocalyptic number.

It is an amenable number.

12420553001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420553001 is an equidigital number, since it uses as much as digits as its factorization.

12420553001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 12420553001 in words is "twelve billion, four hundred twenty million, five hundred fifty-three thousand, one".