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131011011210 = 23571199309083
BaseRepresentation
bin111101000000011011…
…1010110001010001010
3110112011101022221021110
41322000313112022022
54121302304324320
6140104032351150
712315401135622
oct1720067261212
9415141287243
10131011011210
115061a333892
12214833a54b6
13c47b498911
1464ab881882
15361b9bc5e0
hex1e80dd628a

131011011210 has 64 divisors (see below), whose sum is σ = 320458291200. Its totient is φ = 34271012160.

The previous prime is 131011011179. The next prime is 131011011223. The reversal of 131011011210 is 12110110131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269329 + ... + 578411.

It is an arithmetic number, because the mean of its divisors is an integer number (5007160800).

Almost surely, 2131011011210 is an apocalyptic number.

131011011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131011011210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160229145600).

131011011210 is an abundant number, since it is smaller than the sum of its proper divisors (189447279990).

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

131011011210 is a wasteful number, since it uses less digits than its factorization.

131011011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309363.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 131011011210 its reverse (12110110131), we get a palindrome (143121121341).

The spelling of 131011011210 in words is "one hundred thirty-one billion, eleven million, eleven thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 71 142 199 213 355 398 426 597 710 995 1065 1194 1990 2130 2985 5970 14129 28258 42387 70645 84774 141290 211935 309083 423870 618166 927249 1545415 1854498 3090830 4636245 9272490 21944893 43889786 61507517 65834679 109724465 123015034 131669358 184522551 219448930 307537585 329173395 369045102 615075170 658346790 922612755 1845225510 4367033707 8734067414 13101101121 21835168535 26202202242 43670337070 65505505605 131011011210