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131010131102020 = 2256550506555101
BaseRepresentation
bin11101110010011100101100…
…010100111000100101000100
3122011212110001021220000112121
4131302130230110320211010
5114132432222030231040
61142345120125055324
736411112115333212
oct3562345424704504
9564773037800477
10131010131102020
11388200a2642005
121283a7839b7544
135814282751441
14244ccd1d33cb2
151022d1a467c4a
hex77272c538944

131010131102020 has 12 divisors (see below), whose sum is σ = 275121275314284. Its totient is φ = 52404052440800.

The previous prime is 131010131102003. The next prime is 131010131102027. The reversal of 131010131102020 is 20201131010131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27525573376324 + 103484557725696 = 5246482^2 + 10172736^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131010131101985 and 131010131102003.

It is not an unprimeable number, because it can be changed into a prime (131010131102027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3275253277531 + ... + 3275253277570.

It is an arithmetic number, because the mean of its divisors is an integer number (22926772942857).

Almost surely, 2131010131102020 is an apocalyptic number.

131010131102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131010131102020 is an abundant number, since it is smaller than the sum of its proper divisors (144111144212264).

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

131010131102020 is a wasteful number, since it uses less digits than its factorization.

131010131102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6550506555110 (or 6550506555108 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131010131102020 its reverse (20201131010131), we get a palindrome (151211262112151).

The spelling of 131010131102020 in words is "one hundred thirty-one trillion, ten billion, one hundred thirty-one million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 6550506555101 13101013110202 26202026220404 32752532775505 65505065551010 131010131102020