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131120013012 = 22396711299553
BaseRepresentation
bin111101000011101011…
…1001001111011010100
3110112102222102210122020
41322013113021323110
54122013210404022
6140122524533140
712321163502262
oct1720727117324
9415388383566
10131120013012
115067591351a
12214b39b11b0
13c497c41821
1464bc137432
15362634e35c
hex1e875c9ed4

131120013012 has 24 divisors (see below), whose sum is σ = 306263111616. Its totient is φ = 43661468928.

The previous prime is 131120013001. The next prime is 131120013029. The reversal of 131120013012 is 210310021131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131120012982 and 131120013000.

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, 5638173 + ... + 5661380.

It is an arithmetic number, because the mean of its divisors is an integer number (12760962984).

Almost surely, 2131120013012 is an apocalyptic number.

131120013012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131120013012 is an abundant number, since it is smaller than the sum of its proper divisors (175143098604).

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

131120013012 is a wasteful number, since it uses less digits than its factorization.

131120013012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11300527 (or 11300525 counting only the distinct ones).

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

Adding to 131120013012 its reverse (210310021131), we get a palindrome (341430034143).

The spelling of 131120013012 in words is "one hundred thirty-one billion, one hundred twenty million, thirteen thousand, twelve".

Divisors: 1 2 3 4 6 12 967 1934 2901 3868 5802 11604 11299553 22599106 33898659 45198212 67797318 135594636 10926667751 21853335502 32780003253 43706671004 65560006506 131120013012