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20010102230101 = 232816075100661
BaseRepresentation
bin1001000110010111101110…
…00010010000110001010101
32121211221120102120222010011
410203023313002100301111
510110321142132330401
6110320303012000221
74133452662404524
oct443136702206125
977757512528104
1020010102230101
116415267057035
1222b2112900071
13b21c38215a99
144d26cbbd24bb
1524a796bd9451
hex1232f7090c55

20010102230101 has 16 divisors (see below), whose sum is σ = 20988938492928. Its totient is φ = 19040559753600.

The previous prime is 20010102230059. The next prime is 20010102230137. The reversal of 20010102230101 is 10103220101002.

It is a cyclic number.

It is not a de Polignac number, because 20010102230101 - 27 = 20010102229973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010102230401) 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, 1372711 + ... + 6473371.

It is an arithmetic number, because the mean of its divisors is an integer number (1311808655808).

Almost surely, 220010102230101 is an apocalyptic number.

It is an amenable number.

20010102230101 is a deficient number, since it is larger than the sum of its proper divisors (978836262827).

20010102230101 is a wasteful number, since it uses less digits than its factorization.

20010102230101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101572.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20010102230101 its reverse (10103220101002), we get a palindrome (30113322331103).

The spelling of 20010102230101 in words is "twenty trillion, ten billion, one hundred two million, two hundred thirty thousand, one hundred one".

Divisors: 1 23 281 607 6463 13961 170567 3923041 5100661 117315203 1433285741 3096101227 32965572043 71210328221 870004444787 20010102230101