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23131302012313 = 1161389797111191
BaseRepresentation
bin1010100001001101011010…
…00010100010010110011001
310000220022221012122002211221
411100212231002202112121
511012440401303343223
6121110212355252041
74605116140664425
oct520465502422631
9100808835562757
1023131302012313
117408a25a54a80
1227170022aa021
13cba370679341
1459d7bd505b85
152a1a718c9b5d
hex1509ad0a2599

23131302012313 has 32 divisors (see below), whose sum is σ = 25746249634560. Its totient is φ = 20604485472000.

The previous prime is 23131302012271. The next prime is 23131302012337. The reversal of 23131302012313 is 31321020313132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23131302012313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23131302012713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207976548 + ... + 208087738.

It is an arithmetic number, because the mean of its divisors is an integer number (804570301080).

Almost surely, 223131302012313 is an apocalyptic number.

It is an amenable number.

23131302012313 is a deficient number, since it is larger than the sum of its proper divisors (2614947622247).

23131302012313 is a wasteful number, since it uses less digits than its factorization.

23131302012313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112449.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 23131302012313 its reverse (31321020313132), we get a palindrome (54452322325445).

The spelling of 23131302012313 in words is "twenty-three trillion, one hundred thirty-one billion, three hundred two million, twelve thousand, three hundred thirteen".

Divisors: 1 11 61 389 671 797 4279 8767 23729 48617 111191 261019 310033 534787 1223101 3410363 6782651 18912013 43253299 74609161 88619227 208032143 475786289 974811497 2638451239 5405772847 29022963629 34472879303 59463501317 379201672333 2102845637483 23131302012313