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131112200220210 = 232511241887619537
BaseRepresentation
bin11101110011111011110000…
…000111101010111000110010
3122012020012111122221110100100
4131303323300013222320302
5114141120241224021320
61142504040244333230
736421354355455236
oct3563736007527062
9565205448843310
10131112200220210
113885a40aa33240
121285650a6a4216
135820a9ab28571
142453c15ac25c6
1510257e1169790
hex773ef01eae32

131112200220210 has 192 divisors, whose sum is σ = 373846556438784. Its totient is φ = 31617152409600.

The previous prime is 131112200220193. The next prime is 131112200220247. The reversal of 131112200220210 is 12022002211131.

131112200220210 is a `hidden beast` number, since 1 + 3 + 1 + 11 + 220 + 0 + 220 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 211319562 + ... + 211939098.

It is an arithmetic number, because the mean of its divisors is an integer number (1947117481452).

Almost surely, 2131112200220210 is an apocalyptic number.

131112200220210 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 131112200220210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186923278219392).

131112200220210 is an abundant number, since it is smaller than the sum of its proper divisors (242734356218574).

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

131112200220210 is a wasteful number, since it uses less digits than its factorization.

131112200220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620689 (or 620686 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 131112200220210 its reverse (12022002211131), we get a palindrome (143134202431341).

The spelling of 131112200220210 in words is "one hundred thirty-one trillion, one hundred twelve billion, two hundred million, two hundred twenty thousand, two hundred ten".