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2020120121112 = 233718243143821
BaseRepresentation
bin11101011001011000100…
…010101100111100011000
321011010021122101220101220
4131121120202230330120
5231044201222333422
64144010321012040
7265643313466212
oct35313042547430
97133248356356
102020120121112
11709801164655
1228761a184020
1311865baa9092
146dabaac35b2
1537834574e5c
hex1d6588acf18

2020120121112 has 64 divisors (see below), whose sum is σ = 5122088213760. Its totient is φ = 663804086400.

The previous prime is 2020120121081. The next prime is 2020120121119. The reversal of 2020120121112 is 2111210210202.

It is a junction number, because it is equal to n+sod(n) for n = 2020120121091 and 2020120121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020120121119) 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, 13974162 + ... + 14117982.

It is an arithmetic number, because the mean of its divisors is an integer number (80032628340).

Almost surely, 22020120121112 is an apocalyptic number.

It is an amenable number.

2020120121112 is an abundant number, since it is smaller than the sum of its proper divisors (3101968092648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2020120121112 is a wasteful number, since it uses less digits than its factorization.

2020120121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152144 (or 152140 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2020120121112 its reverse (2111210210202), we get a palindrome (4131330331314).

The spelling of 2020120121112 in words is "two trillion, twenty billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 71 142 213 284 426 568 852 1704 8243 16486 24729 32972 49458 65944 98916 143821 197832 287642 431463 575284 585253 862926 1150568 1170506 1725852 1755759 2341012 3451704 3511518 4682024 7023036 10211291 14046072 20422582 30633873 40845164 61267746 81690328 122535492 245070984 1185516503 2371033006 3556549509 4742066012 7113099018 9484132024 14226198036 28452396072 84171671713 168343343426 252515015139 336686686852 505030030278 673373373704 1010060060556 2020120121112