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123020101010 = 2517273358073
BaseRepresentation
bin111001010010010010…
…0011100010110010010
3102202112111000122020102
41302210210130112102
54003421121213020
6132303055412402
711613360414422
oct1624444342622
9382474018212
10123020101010
1148199704774
121ba13224102
13b7a6ab8ca1
145d504a2482
1533001ba475
hex1ca491c592

123020101010 has 48 divisors (see below), whose sum is σ = 235553022216. Its totient is φ = 46249469952.

The previous prime is 123020100991. The next prime is 123020101049. The reversal of 123020101010 is 10101020321.

123020101010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 44598259489 + 78421841521 = 211183^2 + 280039^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123020100982 and 123020101000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2089334 + ... + 2147406.

Almost surely, 2123020101010 is an apocalyptic number.

123020101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123020101010 is a deficient number, since it is larger than the sum of its proper divisors (112532921206).

123020101010 is a wasteful number, since it uses less digits than its factorization.

123020101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58847 (or 58830 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 123020101010 its reverse (10101020321), we get a palindrome (133121121331).

The spelling of 123020101010 in words is "one hundred twenty-three billion, twenty million, one hundred one thousand, ten".

Divisors: 1 2 5 10 17 34 85 170 289 578 733 1445 1466 2890 3665 7330 12461 24922 58073 62305 116146 124610 211837 290365 423674 580730 987241 1059185 1974482 2118370 4936205 9872410 16783097 33566194 42567509 83915485 85135018 167830970 212837545 425675090 723647653 1447295306 3618238265 7236476530 12302010101 24604020202 61510050505 123020101010