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131023130232 = 2335459297093
BaseRepresentation
bin111101000000110010…
…1100100111001111000
3110112012020010122110010
41322001211210321320
54121313410131412
6140105144221520
712315606142221
oct1720145447170
9415166118403
10131023130232
1150626161005
122148746a8a0
13c480b4cb37
1464ad318248
15361cab333c
hex1e81964e78

131023130232 has 16 divisors (see below), whose sum is σ = 327557825640. Its totient is φ = 43674376736.

The previous prime is 131023130209. The next prime is 131023130243. The reversal of 131023130232 is 232031320131.

It is a junction number, because it is equal to n+sod(n) for n = 131023130199 and 131023130208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2729648523 + ... + 2729648570.

Almost surely, 2131023130232 is an apocalyptic number.

131023130232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131023130232 is an abundant number, since it is smaller than the sum of its proper divisors (196534695408).

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

131023130232 is a wasteful number, since it uses less digits than its factorization.

131023130232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5459297102 (or 5459297098 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131023130232 its reverse (232031320131), we get a palindrome (363054450363).

The spelling of 131023130232 in words is "one hundred thirty-one billion, twenty-three million, one hundred thirty thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 5459297093 10918594186 16377891279 21837188372 32755782558 43674376744 65511565116 131023130232