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20200012120001 = 729259133840059
BaseRepresentation
bin1001001011111001011101…
…00010111111111111000001
32122112002202120112221200002
410211330232202333333001
510121424111100320001
6110543431340005345
74153255063005110
oct445745642777701
978462676487602
1020200012120001
11648886025716a
122322a93230855
13b36b11c876bc
144db985bb5c77
152506ae40146b
hex125f2e8bffc1

20200012120001 has 16 divisors (see below), whose sum is σ = 23882715561600. Its totient is φ = 16716601926528.

The previous prime is 20200012119941. The next prime is 20200012120021. The reversal of 20200012120001 is 10002121000202.

It is a happy number.

It is not a de Polignac number, because 20200012120001 - 210 = 20200012118977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20200012120021) 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, 3340310 + ... + 7180368.

It is an arithmetic number, because the mean of its divisors is an integer number (1492669722600).

Almost surely, 220200012120001 is an apocalyptic number.

It is an amenable number.

20200012120001 is a deficient number, since it is larger than the sum of its proper divisors (3682703441599).

20200012120001 is a wasteful number, since it uses less digits than its factorization.

20200012120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866008.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20200012120001 its reverse (10002121000202), we get a palindrome (30202133120203).

The spelling of 20200012120001 in words is "twenty trillion, two hundred billion, twelve million, one hundred twenty thousand, one".

Divisors: 1 7 29 203 25913 181391 751477 3840059 5260339 26880413 111361711 779531977 99507448867 696552142069 2885716017143 20200012120001