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103231212201 = 32137971107049
BaseRepresentation
bin110000000100100001…
…1110100101010101001
3100212110100201221002200
41200021003310222221
53142404142242301
6115231311050413
710313110553145
oct1401103645251
9325410657080
10103231212201
113a864367707
121800bb10a09
139972088c20
144dd4252225
152a42c50c86
hex18090f4aa9

103231212201 has 24 divisors (see below), whose sum is σ = 160783513800. Its totient is φ = 63447134976.

The previous prime is 103231212067. The next prime is 103231212221. The reversal of 103231212201 is 102212132301.

103231212201 is a `hidden beast` number, since 1 + 0 + 323 + 121 + 220 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14665452201 + 88565760000 = 121101^2 + 297600^2 .

It is not a de Polignac number, because 103231212201 - 215 = 103231179433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103231212221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 460276 + ... + 646773.

It is an arithmetic number, because the mean of its divisors is an integer number (6699313075).

Almost surely, 2103231212201 is an apocalyptic number.

It is an amenable number.

103231212201 is a deficient number, since it is larger than the sum of its proper divisors (57552301599).

103231212201 is a wasteful number, since it uses less digits than its factorization.

103231212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107865 (or 1107862 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 103231212201 its reverse (102212132301), we get a palindrome (205443344502).

The spelling of 103231212201 in words is "one hundred three billion, two hundred thirty-one million, two hundred twelve thousand, two hundred one".

Divisors: 1 3 9 13 39 117 797 2391 7173 10361 31083 93249 1107049 3321147 9963441 14391637 43174911 129524733 882318053 2646954159 7940862477 11470134689 34410404067 103231212201