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10131201211 = 14967994639
BaseRepresentation
bin10010110111101110…
…11101110010111011
3222011001122100100111
421123313131302323
5131222041414321
64353150445151
7506026534525
oct113367356273
928131570314
1010131201211
11432988746a
121b68b037b7
13c55c36921
146c1756a15
153e46775e1
hex25bdddcbb

10131201211 has 4 divisors (see below), whose sum is σ = 10199196000. Its totient is φ = 10063206424.

The previous prime is 10131201203. The next prime is 10131201217. The reversal of 10131201211 is 11210213101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11210213101 = 13781826373.

It is a cyclic number.

It is not a de Polignac number, because 10131201211 - 23 = 10131201203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10131201191 and 10131201200.

It is not an unprimeable number, because it can be changed into a prime (10131201217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33997171 + ... + 33997468.

It is an arithmetic number, because the mean of its divisors is an integer number (2549799000).

Almost surely, 210131201211 is an apocalyptic number.

10131201211 is a deficient number, since it is larger than the sum of its proper divisors (67994789).

10131201211 is an equidigital number, since it uses as much as digits as its factorization.

10131201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67994788.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 10131201211 its reverse (11210213101), we get a palindrome (21341414312).

The spelling of 10131201211 in words is "ten billion, one hundred thirty-one million, two hundred one thousand, two hundred eleven".

Divisors: 1 149 67994639 10131201211