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20201012011012 = 22723103304543991
BaseRepresentation
bin1001001011111011010100…
…01001010010000000000100
32122112012100021000200021111
410211331222021102000010
510121433133033323022
6110544114455054404
74153321623643210
oct445755211220004
978465307020244
1020201012011012
116489223706078
122323112071404
13b36c411870a1
144dba3c8d5940
1525071c0b0477
hex125f6a252004

20201012011012 has 48 divisors (see below), whose sum is σ = 42567941025792. Its totient is φ = 8200760562720.

The previous prime is 20201012010931. The next prime is 20201012011013. The reversal of 20201012011012 is 21011021010202.

It is a junction number, because it is equal to n+sod(n) for n = 20201012010983 and 20201012011001.

It is not an unprimeable number, because it can be changed into a prime (20201012011013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152205664 + ... + 152338327.

It is an arithmetic number, because the mean of its divisors is an integer number (886832104704).

Almost surely, 220201012011012 is an apocalyptic number.

It is an amenable number.

20201012011012 is an abundant number, since it is smaller than the sum of its proper divisors (22366929014780).

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

20201012011012 is a wasteful number, since it uses less digits than its factorization.

20201012011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304544128 (or 304544126 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20201012011012 its reverse (21011021010202), we get a palindrome (41212033021214).

The spelling of 20201012011012 in words is "twenty trillion, two hundred one billion, twelve million, eleven thousand, twelve".

Divisors: 1 2 4 7 14 23 28 46 92 103 161 206 322 412 644 721 1442 2369 2884 4738 9476 16583 33166 66332 304543991 609087982 1218175964 2131807937 4263615874 7004511793 8527231748 14009023586 28018047172 31368031073 49031582551 62736062146 98063165102 125472124292 196126330204 219576217511 439152435022 721464714679 878304870044 1442929429358 2885858858716 5050253002753 10100506005506 20201012011012