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20210201202011 = 1371571611315361
BaseRepresentation
bin1001001100001100011011…
…10111010000110101011011
32122120002001200002221112212
410212012031313100311123
510122110443001431021
6110552234355225335
74154065424532422
oct446061567206533
978502050087485
1020210201202011
1164921097772a7
122324a575a824b
13b37a76ba8802
144dc2710b82b9
15250aa8bad85b
hex12618ddd0d5b

20210201202011 has 16 divisors (see below), whose sum is σ = 20375338066848. Its totient is φ = 20045325926400.

The previous prime is 20210201201989. The next prime is 20210201202013. The reversal of 20210201202011 is 11020210201202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20210201202011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210201202013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1315674971 + ... + 1315690331.

It is an arithmetic number, because the mean of its divisors is an integer number (1273458629178).

Almost surely, 220210201202011 is an apocalyptic number.

20210201202011 is a deficient number, since it is larger than the sum of its proper divisors (165136864837).

20210201202011 is a wasteful number, since it uses less digits than its factorization.

20210201202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23182.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20210201202011 its reverse (11020210201202), we get a palindrome (31230411403213).

The spelling of 20210201202011 in words is "twenty trillion, two hundred ten billion, two hundred one million, two hundred two thousand, eleven".

Divisors: 1 137 1571 6113 15361 215227 837481 2104457 9603523 24132131 93901793 1315682651 3306101947 12864545641 147519716803 20210201202011