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1123025471 is a prime number
BaseRepresentation
bin100001011110000…
…0000001000111111
32220021011121022222
41002330000020333
54244443303341
6303234155555
736554362511
oct10274001077
92807147288
101123025471
11526a11727
12274122bbb
1314b883219
14a9213bb1
15688d344b
hex42f0023f

1123025471 has 2 divisors, whose sum is σ = 1123025472. Its totient is φ = 1123025470.

The previous prime is 1123025447. The next prime is 1123025479. The reversal of 1123025471 is 1745203211.

It is a strong prime.

It is an emirp because it is prime and its reverse (1745203211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123025471 - 210 = 1123024447 is a prime.

It is a super-3 number, since 3×11230254713 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123025471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123025479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561512735 + 561512736.

It is an arithmetic number, because the mean of its divisors is an integer number (561512736).

Almost surely, 21123025471 is an apocalyptic number.

1123025471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123025471 is an equidigital number, since it uses as much as digits as its factorization.

1123025471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1123025471 is about 33511.5721952880. The cubic root of 1123025471 is about 1039.4330832196.

Adding to 1123025471 its reverse (1745203211), we get a palindrome (2868228682).

The spelling of 1123025471 in words is "one billion, one hundred twenty-three million, twenty-five thousand, four hundred seventy-one".