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131200221112 = 2342013903839
BaseRepresentation
bin111101000110000100…
…1000111111110111000
3110112122120100210110121
41322030021013332320
54122144224033422
6140134512023024
712323156323162
oct1721411077670
9415576323417
10131200221112
1150707117004
1221516831a74
13c4ab74583c
1464c8a55932
15362d3e48c7
hex1e8c247fb8

131200221112 has 16 divisors (see below), whose sum is σ = 246059035200. Its totient is φ = 65584478400.

The previous prime is 131200221109. The next prime is 131200221121. The reversal of 131200221112 is 211122002131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1918312 + ... + 1985527.

It is an arithmetic number, because the mean of its divisors is an integer number (15378689700).

Almost surely, 2131200221112 is an apocalyptic number.

It is an amenable number.

131200221112 is a deficient number, since it is larger than the sum of its proper divisors (114858814088).

131200221112 is a wasteful number, since it uses less digits than its factorization.

131200221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3908046 (or 3908042 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 131200221112 its reverse (211122002131), we get a palindrome (342322223243).

The spelling of 131200221112 in words is "one hundred thirty-one billion, two hundred million, two hundred twenty-one thousand, one hundred twelve".

Divisors: 1 2 4 8 4201 8402 16804 33608 3903839 7807678 15615356 31230712 16400027639 32800055278 65600110556 131200221112