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12121144041 = 317409581099
BaseRepresentation
bin10110100100111100…
…11111101011101001
31011021202001220201210
423102132133223221
5144311003102131
65322434103333
7606242011236
oct132236375351
934252056653
1012121144041
115160084a16
12242341ab49
1311b229c3a6
1482db5478d
154ae200146
hex2d279fae9

12121144041 has 16 divisors (see below), whose sum is σ = 17154072000. Its totient is φ = 7586815488.

The previous prime is 12121144039. The next prime is 12121144081. The reversal of 12121144041 is 14044112121.

It is not a de Polignac number, because 12121144041 - 21 = 12121144039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12121143999 and 12121144017.

It is not an unprimeable number, because it can be changed into a prime (12121144081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269691 + ... + 311408.

It is an arithmetic number, because the mean of its divisors is an integer number (1072129500).

Almost surely, 212121144041 is an apocalyptic number.

It is an amenable number.

12121144041 is a deficient number, since it is larger than the sum of its proper divisors (5032927959).

12121144041 is a wasteful number, since it uses less digits than its factorization.

12121144041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581528.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12121144041 its reverse (14044112121), we get a palindrome (26165256162).

The spelling of 12121144041 in words is "twelve billion, one hundred twenty-one million, one hundred forty-four thousand, forty-one".

Divisors: 1 3 17 51 409 1227 6953 20859 581099 1743297 9878683 29636049 237669491 713008473 4040381347 12121144041