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10013131123 = 167132145389
BaseRepresentation
bin10010101001101010…
…00100000101110011
3221211211110202122021
421110311010011303
5131001330143443
64333332052311
7503064132052
oct112465040563
927754422567
1010013131123
114279173686
121b35464097
13c37637278
146adbc0399
153d91039ed
hex254d44173

10013131123 has 8 divisors (see below), whose sum is σ = 10080937440. Its totient is φ = 9945418560.

The previous prime is 10013131111. The next prime is 10013131181. The reversal of 10013131123 is 32113131001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10013131123 is a prime.

It is a super-2 number, since 2×100131311232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10013131097 and 10013131106.

It is not an unprimeable number, because it can be changed into a prime (10013131103) 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, 197913 + ... + 243301.

It is an arithmetic number, because the mean of its divisors is an integer number (1260117180).

Almost surely, 210013131123 is an apocalyptic number.

10013131123 is a deficient number, since it is larger than the sum of its proper divisors (67806317).

10013131123 is a wasteful number, since it uses less digits than its factorization.

10013131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46877.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 10013131123 its reverse (32113131001), we get a palindrome (42126262124).

The spelling of 10013131123 in words is "ten billion, thirteen million, one hundred thirty-one thousand, one hundred twenty-three".

Divisors: 1 167 1321 45389 220607 7579963 59958869 10013131123