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131201404310420 = 22566128499348239
BaseRepresentation
bin11101110101001110110101…
…000110010001001110010100
3122012112201202110011202111022
4131311032311012101032110
5114144100434000413140
61143013032033500312
736430663051642133
oct3565166506211624
9565481673152438
10131201404310420
1138894226357544
121286b864a11698
135829315a9a5b2
142458278ddb91a
151027cb26cb0b5
hex7753b5191394

131201404310420 has 48 divisors (see below), whose sum is σ = 275950251360000. Its totient is φ = 52399176846720.

The previous prime is 131201404310407. The next prime is 131201404310441. The reversal of 131201404310420 is 24013404102131.

It is a self number, because there is not a number n which added to its sum of digits gives 131201404310420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376582661 + ... + 376930899.

It is an arithmetic number, because the mean of its divisors is an integer number (5748963570000).

Almost surely, 2131201404310420 is an apocalyptic number.

131201404310420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131201404310420 is an abundant number, since it is smaller than the sum of its proper divisors (144748847049580).

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

131201404310420 is a wasteful number, since it uses less digits than its factorization.

131201404310420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377408 (or 377406 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 131201404310420 its reverse (24013404102131), we get a palindrome (155214808412551).

The spelling of 131201404310420 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred four million, three hundred ten thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 661 1322 2644 3305 6610 13220 28499 56998 113996 142495 284990 348239 569980 696478 1392956 1741195 3482390 6964780 18837839 37675678 75351356 94189195 188378390 230185979 376756780 460371958 920743916 1150929895 2301859790 4603719580 9924463261 19848926522 39697853044 49622316305 99244632610 198489265220 6560070215521 13120140431042 26240280862084 32800351077605 65600702155210 131201404310420