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10131231102 = 2313112889607
BaseRepresentation
bin10010110111101111…
…00101000101111110
3222011001200212100120
421123313211011332
5131222043343402
64353151235410
7506030020626
oct113367450576
928131625316
1010131231102
1143298a7973
121b68b18b66
13c55c47405
146c1763886
153e46813bc
hex25bde517e

10131231102 has 16 divisors (see below), whose sum is σ = 20417139072. Its totient is φ = 3351297560.

The previous prime is 10131231083. The next prime is 10131231127. The reversal of 10131231102 is 20113213101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6444018 + ... + 6445589.

It is an arithmetic number, because the mean of its divisors is an integer number (1276071192).

Almost surely, 210131231102 is an apocalyptic number.

10131231102 is an abundant number, since it is smaller than the sum of its proper divisors (10285907970).

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

10131231102 is a wasteful number, since it uses less digits than its factorization.

10131231102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12889743.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10131231102 its reverse (20113213101), we get a palindrome (30244444203).

The spelling of 10131231102 in words is "ten billion, one hundred thirty-one million, two hundred thirty-one thousand, one hundred two".

Divisors: 1 2 3 6 131 262 393 786 12889607 25779214 38668821 77337642 1688538517 3377077034 5065615551 10131231102