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11321197 is a prime number
BaseRepresentation
bin101011001011…
…111101101101
3210022011202121
4223023331231
510344234242
61042352541
7165141256
oct53137555
923264677
1011321197
116432868
12395b751
132465044
141709b2d
15ed9667
hexacbf6d

11321197 has 2 divisors, whose sum is σ = 11321198. Its totient is φ = 11321196.

The previous prime is 11321183. The next prime is 11321203. The reversal of 11321197 is 79112311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7733961 + 3587236 = 2781^2 + 1894^2 .

It is an emirp because it is prime and its reverse (79112311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11321197 - 215 = 11288429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660598 + 5660599.

It is an arithmetic number, because the mean of its divisors is an integer number (5660599).

Almost surely, 211321197 is an apocalyptic number.

It is an amenable number.

11321197 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321197 is an equidigital number, since it uses as much as digits as its factorization.

11321197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378, while the sum is 25.

The square root of 11321197 is about 3364.6986492107. The cubic root of 11321197 is about 224.5419289646.

The spelling of 11321197 in words is "eleven million, three hundred twenty-one thousand, one hundred ninety-seven".