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1123103001 = 31657225931
BaseRepresentation
bin100001011110001…
…0011000100011001
32220021022112200110
41002330103010121
54300003244001
6303235554533
736555134526
oct10274230431
92807275613
101123103001
11526a649a9
1227415ba49
1314b8ac5b7
14a923414d
15688eb3d6
hex42f13119

1123103001 has 8 divisors (see below), whose sum is σ = 1498381024. Its totient is φ = 748280160.

The previous prime is 1123102997. The next prime is 1123103027. The reversal of 1123103001 is 1003013211.

1123103001 = T233 + T234 + ... + T1889.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1123103001 - 22 = 1123102997 is a prime.

It is a super-2 number, since 2×11231030012 = 2522720701710412002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1123103071) 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 in 7 ways as a sum of consecutive naturals, for example, 107995 + ... + 117936.

It is an arithmetic number, because the mean of its divisors is an integer number (187297628).

Almost surely, 21123103001 is an apocalyptic number.

It is an amenable number.

1123103001 is a deficient number, since it is larger than the sum of its proper divisors (375278023).

1123103001 is a wasteful number, since it uses less digits than its factorization.

1123103001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227591.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1123103001 is about 33512.7289399118. The cubic root of 1123103001 is about 1039.4570023543.

Adding to 1123103001 its reverse (1003013211), we get a palindrome (2126116212).

The spelling of 1123103001 in words is "one billion, one hundred twenty-three million, one hundred three thousand, one".

Divisors: 1 3 1657 4971 225931 677793 374367667 1123103001