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10123330121 = 292521138469
BaseRepresentation
bin10010110110110010…
…11100001001001001
3222010111211110020122
421123121130021021
5131213033030441
64352310033025
7505602612662
oct113331341111
928114743218
1010123330121
1143253a0833
121b66348775
13c5440c088
146c06a8369
153e3b2034b
hex25b65c249

10123330121 has 8 divisors (see below), whose sum is σ = 10476640200. Its totient is φ = 9770302080.

The previous prime is 10123330109. The next prime is 10123330127. The reversal of 10123330121 is 12103332101.

It can be written as a sum of positive squares in 4 ways, for example, as 10010896 + 10113319225 = 3164^2 + 100565^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10123330121 - 26 = 10123330057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10123330121.

It is not an unprimeable number, because it can be changed into a prime (10123330127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3875 + ... + 142343.

It is an arithmetic number, because the mean of its divisors is an integer number (1309580025).

Almost surely, 210123330121 is an apocalyptic number.

It is an amenable number.

10123330121 is a deficient number, since it is larger than the sum of its proper divisors (353310079).

10123330121 is a wasteful number, since it uses less digits than its factorization.

10123330121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141019.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 10123330121 its reverse (12103332101), we get a palindrome (22226662222).

The spelling of 10123330121 in words is "ten billion, one hundred twenty-three million, three hundred thirty thousand, one hundred twenty-one".

Divisors: 1 29 2521 73109 138469 4015601 349080349 10123330121