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20323013022131 = 174332998427299
BaseRepresentation
bin1001001111011110100011…
…11110001101000110110011
32122221212020201110011222212
410213233101332031012303
510130433012313202011
6111120132512122335
74165201131301241
oct447572176150663
978855221404885
1020323013022131
116525a3a038496
12234289bb363ab
13b455b4ab0ab1
145038d38bb791
152539aca7808b
hex127bd1f8d1b3

20323013022131 has 16 divisors (see below), whose sum is σ = 22025591280000. Its totient is φ = 18677049756288.

The previous prime is 20323013022119. The next prime is 20323013022157. The reversal of 20323013022131 is 13122031032302.

It is not a de Polignac number, because 20323013022131 - 214 = 20323013005747 is a prime.

It is a super-2 number, since 2×203230130221312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20323013022097 and 20323013022106.

It is not an unprimeable number, because it can be changed into a prime (20323013021131) 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, 1802081 + ... + 6625218.

It is an arithmetic number, because the mean of its divisors is an integer number (1376599455000).

Almost surely, 220323013022131 is an apocalyptic number.

20323013022131 is a deficient number, since it is larger than the sum of its proper divisors (1702578257869).

20323013022131 is a wasteful number, since it uses less digits than its factorization.

20323013022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8430658.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20323013022131 its reverse (13122031032302), we get a palindrome (33445044054433).

The spelling of 20323013022131 in words is "twenty trillion, three hundred twenty-three billion, thirteen million, twenty-two thousand, one hundred thirty-one".

Divisors: 1 17 43 731 3299 56083 141857 2411569 8427299 143264083 362373857 6160355569 27801659401 472628209817 1195471354243 20323013022131