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2020031031123 = 32749165303431
BaseRepresentation
bin11101011001010011001…
…110110110011101010011
321011010001102202122220200
4131121103032312131103
5231044010420443443
64143553415310243
7265641152313510
oct35312316663523
97133042678820
102020031031123
11709765944a66
122875b437b383
131186464b5401
146daacd32307
153782b827dd3
hex1d6533b6753

2020031031123 has 24 divisors (see below), whose sum is σ = 3341446008576. Its totient is φ = 1151952505200.

The previous prime is 2020031031113. The next prime is 2020031031131. The reversal of 2020031031123 is 3211301300202.

2020031031123 is a `hidden beast` number, since 2 + 0 + 20 + 0 + 310 + 311 + 23 = 666.

It is not a de Polignac number, because 2020031031123 - 221 = 2020028933971 is a prime.

It is a super-2 number, since 2×20200310311232 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2020031031096 and 2020031031105.

It is not an unprimeable number, because it can be changed into a prime (2020031031113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32620783 + ... + 32682648.

It is an arithmetic number, because the mean of its divisors is an integer number (139226917024).

Almost surely, 22020031031123 is an apocalyptic number.

2020031031123 is a deficient number, since it is larger than the sum of its proper divisors (1321414977453).

2020031031123 is a wasteful number, since it uses less digits than its factorization.

2020031031123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65303935 (or 65303932 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 2020031031123 its reverse (3211301300202), we get a palindrome (5231332331325).

The spelling of 2020031031123 in words is "two trillion, twenty billion, thirty-one million, thirty-one thousand, one hundred twenty-three".

Divisors: 1 3 7 9 21 63 491 1473 3437 4419 10311 30933 65303431 195910293 457124017 587730879 1371372051 4114116153 32063984621 96191953863 224447892347 288575861589 673343677041 2020031031123