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1230211101 = 3728539811
BaseRepresentation
bin100100101010011…
…1000100000011101
310011201212012101010
41021110320200131
510004413223401
6322023405433
742325423200
oct11124704035
93151765333
101230211101
11581470899
122a3bb3879
13167b41582
14b9555937
1573006ed6
hex4953881d

1230211101 has 24 divisors (see below), whose sum is σ = 1910514144. Its totient is φ = 702082080.

The previous prime is 1230211067. The next prime is 1230211121. The reversal of 1230211101 is 1011120321.

It is not a de Polignac number, because 1230211101 - 219 = 1229686813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230211121) 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 23 ways as a sum of consecutive naturals, for example, 120486 + ... + 130296.

It is an arithmetic number, because the mean of its divisors is an integer number (79604756).

Almost surely, 21230211101 is an apocalyptic number.

It is an amenable number.

1230211101 is a deficient number, since it is larger than the sum of its proper divisors (680303043).

1230211101 is an equidigital number, since it uses as much as digits as its factorization.

1230211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10681 (or 10674 counting only the distinct ones).

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

The square root of 1230211101 is about 35074.3652971796. The cubic root of 1230211101 is about 1071.5025622070.

Adding to 1230211101 its reverse (1011120321), we get a palindrome (2241331422).

The spelling of 1230211101 in words is "one billion, two hundred thirty million, two hundred eleven thousand, one hundred one".

Divisors: 1 3 7 21 49 147 853 2559 5971 9811 17913 29433 41797 68677 125391 206031 480739 1442217 8368783 25106349 58581481 175744443 410070367 1230211101