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131120310432040 = 2353278007760801
BaseRepresentation
bin11101110100000011010011…
…100001101011000100101000
3122012020222102212201220110021
4131310003103201223010220
5114141233343432311130
61142511501122330224
736422062345231546
oct3564032341530450
9565228385656407
10131120310432040
11388628a1a37446
1212857bb27b9974
135821791149287
142454384c78d96
151025b1818537a
hex7740d386b128

131120310432040 has 16 divisors (see below), whose sum is σ = 295020698472180. Its totient is φ = 52448124172800.

The previous prime is 131120310432011. The next prime is 131120310432047. The reversal of 131120310432040 is 40234013021131.

It can be written as a sum of positive squares in 2 ways, for example, as 130715364018724 + 404946413316 = 11433082^2 + 636354^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131120310431996 and 131120310432014.

It is not an unprimeable number, because it can be changed into a prime (131120310432047) 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, 1639003880361 + ... + 1639003880440.

Almost surely, 2131120310432040 is an apocalyptic number.

131120310432040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131120310432040 is an abundant number, since it is smaller than the sum of its proper divisors (163900388040140).

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

131120310432040 is a wasteful number, since it uses less digits than its factorization.

131120310432040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278007760812 (or 3278007760808 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131120310432040 its reverse (40234013021131), we get a palindrome (171354323453171).

The spelling of 131120310432040 in words is "one hundred thirty-one trillion, one hundred twenty billion, three hundred ten million, four hundred thirty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 3278007760801 6556015521602 13112031043204 16390038804005 26224062086408 32780077608010 65560155216020 131120310432040