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20213311130311 = 13171095303158233
BaseRepresentation
bin1001001100010010001110…
…01110101100101011000111
32122120101002101222200011111
410212021013032230223013
510122133330122132221
6110553511131545451
74154235456510655
oct446110716545307
978511071880144
1020213311130311
11649346519a482
122325584bbb287
13b3815129b880
144dc488137dd5
15250bdbc18be1
hex1262473acac7

20213311130311 has 32 divisors (see below), whose sum is σ = 23264651329920. Its totient is φ = 17396385583104.

The previous prime is 20213311130267. The next prime is 20213311130323. The reversal of 20213311130311 is 11303111331202.

It is a cyclic number.

It is not a de Polignac number, because 20213311130311 - 217 = 20213310999239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213311130351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127664851 + ... + 127823083.

It is an arithmetic number, because the mean of its divisors is an integer number (727020354060).

Almost surely, 220213311130311 is an apocalyptic number.

20213311130311 is a deficient number, since it is larger than the sum of its proper divisors (3051340199609).

20213311130311 is a wasteful number, since it uses less digits than its factorization.

20213311130311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163675.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 20213311130311 its reverse (11303111331202), we get a palindrome (31516422461513).

The spelling of 20213311130311 in words is "twenty trillion, two hundred thirteen billion, three hundred eleven million, one hundred thirty thousand, three hundred eleven".

Divisors: 1 13 17 109 221 1417 1853 5303 24089 68939 90151 158233 578027 1171963 2057029 2689961 7514351 9826459 17247397 34969493 127743967 224216161 293205749 839109599 3811674737 10908424787 14264863183 91462946291 185443221379 1189018301783 1554870086947 20213311130311