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20010220011101 = 893072620927943
BaseRepresentation
bin1001000110010111111100…
…00011100011111001011101
32121211221212122012212021102
410203023332003203321131
510110321412310323401
6110320322420242445
74133455622464415
oct443137603437135
977757778185242
1020010220011101
116415317592701
1222b2146240425
13b21c56743998
144d26dd6d1645
1524a7a220256b
hex1232fe0e3e5d

20010220011101 has 16 divisors (see below), whose sum is σ = 20302467292800. Its totient is φ = 19719480388608.

The previous prime is 20010220011059. The next prime is 20010220011107. The reversal of 20010220011101 is 10111002201002.

It is a cyclic number.

It is not a de Polignac number, because 20010220011101 - 238 = 19735342104157 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 (20010220011107) 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, 716094536 + ... + 716122478.

It is an arithmetic number, because the mean of its divisors is an integer number (1268904205800).

Almost surely, 220010220011101 is an apocalyptic number.

It is an amenable number.

20010220011101 is a deficient number, since it is larger than the sum of its proper divisors (292247281699).

20010220011101 is a wasteful number, since it uses less digits than its factorization.

20010220011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54548.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20010220011101 its reverse (10111002201002), we get a palindrome (30121222212103).

The spelling of 20010220011101 in words is "twenty trillion, ten billion, two hundred twenty million, eleven thousand, one hundred one".

Divisors: 1 89 307 26209 27323 27943 2332601 2486927 8046163 8578501 716108507 732358087 763486589 65179869743 224833932709 20010220011101