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20123130122313 = 3531311062790911
BaseRepresentation
bin1001001001101010010000…
…00001011101000001001001
32122020202022112111210202020
410210311020001131001021
510114144132302403223
6110444234403555053
74144563631550211
oct444651001350111
978222275453666
1020123130122313
1164591983883a9
12230bbb768ba89
13b2c7abb1198a
144d7d7119d241
1524d6aea351e3
hex124d4805d049

20123130122313 has 32 divisors (see below), whose sum is σ = 27548657528832. Its totient is φ = 13060450603200.

The previous prime is 20123130122297. The next prime is 20123130122323. The reversal of 20123130122313 is 31322103132102.

It is not a de Polignac number, because 20123130122313 - 24 = 20123130122297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20123130122323) 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, 221304328 + ... + 221395238.

It is an arithmetic number, because the mean of its divisors is an integer number (860895547776).

Almost surely, 220123130122313 is an apocalyptic number.

It is an amenable number.

20123130122313 is a deficient number, since it is larger than the sum of its proper divisors (7425527406519).

20123130122313 is a wasteful number, since it uses less digits than its factorization.

20123130122313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101725.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 20123130122313 its reverse (31322103132102), we get a palindrome (51445233254415).

The spelling of 20123130122313 in words is "twenty trillion, one hundred twenty-three billion, one hundred thirty million, one hundred twenty-two thousand, three hundred thirteen".

Divisors: 1 3 53 131 159 393 6943 10627 20829 31881 90911 272733 563231 1392137 1689693 4176411 4818283 11909341 14454849 35728023 73783261 221349783 631195073 966111197 1893585219 2898333591 51203893441 126560566807 153611680323 379681700421 6707710040771 20123130122313