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20123130103120 = 24511438355711503
BaseRepresentation
bin1001001001101010010000…
…00001011000010101010000
32122020202022112110211102101
410210311020001120111100
510114144132301244440
6110444234403330144
74144563631440232
oct444651001302520
978222275424371
1020123130103120
116459198374a40
12230bbb7680954
13b2c7abb06015
144d7d71196252
1524d6aea2e69a
hex124d48058550

20123130103120 has 320 divisors, whose sum is σ = 52955274645504. Its totient is φ = 7047925032960.

The previous prime is 20123130103099. The next prime is 20123130103159. The reversal of 20123130103120 is 2130103132102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1749375289 + ... + 1749386791.

Almost surely, 220123130103120 is an apocalyptic number.

20123130103120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20123130103120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26477637322752).

20123130103120 is an abundant number, since it is smaller than the sum of its proper divisors (32832144542384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20123130103120 is a wasteful number, since it uses less digits than its factorization.

20123130103120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12210 (or 12204 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20123130103120 its reverse (2130103132102), we get a palindrome (22253233235222).

The spelling of 20123130103120 in words is "twenty trillion, one hundred twenty-three billion, one hundred thirty million, one hundred three thousand, one hundred twenty".