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131012200021030 = 2523569618260961
BaseRepresentation
bin11101110010011110100111…
…101001001011110000100110
3122011212122101110220222212121
4131302132213221023300212
5114133000441201133110
61142350101313140154
736411214310010106
oct3562364751136046
9564778343828777
10131012200021030
1138820a64481529
121283b06085a65a
135814522279283
14244d04aa0d206
151022ddbde0cda
hex7727a7a4bc26

131012200021030 has 16 divisors (see below), whose sum is σ = 246075088735584. Its totient is φ = 50126406964480.

The previous prime is 131012200020997. The next prime is 131012200021037. The reversal of 131012200021030 is 30120002210131.

It is a junction number, because it is equal to n+sod(n) for n = 131012200020995 and 131012200021013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012200021037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284809130251 + ... + 284809130710.

It is an arithmetic number, because the mean of its divisors is an integer number (15379693045974).

Almost surely, 2131012200021030 is an apocalyptic number.

131012200021030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131012200021030 is a deficient number, since it is larger than the sum of its proper divisors (115062888714554).

131012200021030 is a wasteful number, since it uses less digits than its factorization.

131012200021030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569618260991.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131012200021030 its reverse (30120002210131), we get a palindrome (161132202231161).

The spelling of 131012200021030 in words is "one hundred thirty-one trillion, twelve billion, two hundred million, twenty-one thousand, thirty".

Divisors: 1 2 5 10 23 46 115 230 569618260961 1139236521922 2848091304805 5696182609610 13101220002103 26202440004206 65506100010515 131012200021030