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1203230001001 = 7172760378229
BaseRepresentation
bin10001100000100110000…
…110001100011101101001
311021000202011112011101011
4101200212012030131221
5124203203340013001
62320431202423521
7152634106154410
oct21404606143551
94230664464334
101203230001001
11424317a70706
1217523b361ba1
138960582bac2
14423454c2477
1521473562d51
hex1182618c769

1203230001001 has 24 divisors (see below), whose sum is σ = 1460978419520. Its totient is φ = 970532865792.

The previous prime is 1203230000893. The next prime is 1203230001011. The reversal of 1203230001001 is 1001000323021.

It is a de Polignac number, because none of the positive numbers 2k-1203230001001 is a prime.

It is a super-2 number, since 2×12032300010012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203230001011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15341755 + ... + 15419983.

Almost surely, 21203230001001 is an apocalyptic number.

It is an amenable number.

1203230001001 is a deficient number, since it is larger than the sum of its proper divisors (257748418519).

1203230001001 is an equidigital number, since it uses as much as digits as its factorization.

1203230001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85873 (or 85856 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1203230001001 its reverse (1001000323021), we get a palindrome (2204230324022).

The spelling of 1203230001001 in words is "one trillion, two hundred three billion, two hundred thirty million, one thousand, one".

Divisors: 1 7 17 119 289 2023 7603 53221 78229 129251 547603 904757 1329893 2197267 9309251 15380869 22608181 158257267 594775087 4163425609 10111176479 70778235353 171890000143 1203230001001