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121270394269 is a prime number
BaseRepresentation
bin111000011110001000…
…1110101110110011101
3102121000112122022211001
41300330101311312131
53441330210104034
6131413313230301
711522123225533
oct1607421656635
9377015568731
10121270394269
1147480a81142
121b605262391
13b58845795b
145c25d5c153
15324b798a14
hex1c3c475d9d

121270394269 has 2 divisors, whose sum is σ = 121270394270. Its totient is φ = 121270394268.

The previous prime is 121270394233. The next prime is 121270394279. The reversal of 121270394269 is 962493072121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116989309369 + 4281084900 = 342037^2 + 65430^2 .

It is a cyclic number.

It is not a de Polignac number, because 121270394269 - 213 = 121270386077 is a prime.

It is a super-2 number, since 2×1212703942692 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121270394209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60635197134 + 60635197135.

It is an arithmetic number, because the mean of its divisors is an integer number (60635197135).

Almost surely, 2121270394269 is an apocalyptic number.

It is an amenable number.

121270394269 is a deficient number, since it is larger than the sum of its proper divisors (1).

121270394269 is an equidigital number, since it uses as much as digits as its factorization.

121270394269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 121270394269 in words is "one hundred twenty-one billion, two hundred seventy million, three hundred ninety-four thousand, two hundred sixty-nine".