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131012201210242 = 211291831112150889
BaseRepresentation
bin11101110010011110100111…
…101101101110000110000010
3122011212122101120011102011111
4131302132213231232012002
5114133000442002211432
61142350101354433534
736411214323062152
oct3562364755560602
9564778346142144
10131012201210242
1138820a65113a50
121283b0611328aa
1358145225a4651
14244d04ac3c762
151022ddc078347
hex7727a7b6e182

131012201210242 has 32 divisors (see below), whose sum is σ = 221897264918400. Its totient is φ = 57466115011200.

The previous prime is 131012201210221. The next prime is 131012201210243. The reversal of 131012201210242 is 242012102210131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (131012201210243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54907267 + ... + 57243622.

It is an arithmetic number, because the mean of its divisors is an integer number (6934289528700).

Almost surely, 2131012201210242 is an apocalyptic number.

131012201210242 is a deficient number, since it is larger than the sum of its proper divisors (90885063708158).

131012201210242 is a wasteful number, since it uses less digits than its factorization.

131012201210242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112152762.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 131012201210242 its reverse (242012102210131), we get a palindrome (373024303420373).

The spelling of 131012201210242 in words is "one hundred thirty-one trillion, twelve billion, two hundred one million, two hundred ten thousand, two hundred forty-two".

Divisors: 1 2 11 22 29 58 319 638 1831 3662 20141 40282 53099 106198 584089 1168178 112150889 224301778 1233659779 2467319558 3252375781 6504751562 35776133591 71552267182 205348277759 410696555518 2258831055349 4517662110698 5955100055011 11910200110022 65506100605121 131012201210242