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131122312202 = 2783112841921
BaseRepresentation
bin111101000011101111…
…1111011010000001010
3110112110010202121112102
41322013133323100022
54122014302442302
6140123050113402
712321222156410
oct1720737732012
9415403677472
10131122312202
1150677143982
12214b471b862
13c4985681ab
1464bc5752b0
153626655702
hex1e877fb40a

131122312202 has 16 divisors (see below), whose sum is σ = 227489314752. Its totient is φ = 55518224640.

The previous prime is 131122312201. The next prime is 131122312253. The reversal of 131122312202 is 202213221131.

It is not an unprimeable number, because it can be changed into a prime (131122312201) 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, 56419799 + ... + 56422122.

It is an arithmetic number, because the mean of its divisors is an integer number (14218082172).

Almost surely, 2131122312202 is an apocalyptic number.

131122312202 is a deficient number, since it is larger than the sum of its proper divisors (96367002550).

131122312202 is a wasteful number, since it uses less digits than its factorization.

131122312202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112842013.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131122312202 its reverse (202213221131), we get a palindrome (333335533333).

The spelling of 131122312202 in words is "one hundred thirty-one billion, one hundred twenty-two million, three hundred twelve thousand, two hundred two".

Divisors: 1 2 7 14 83 166 581 1162 112841921 225683842 789893447 1579786894 9365879443 18731758886 65561156101 131122312202