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131323321130 = 2561215284133
BaseRepresentation
bin111101001001101111…
…0101101101100101010
3110112222010222220221112
41322103132231230222
54122422232234010
6140155030310322
712326212545311
oct1722336555452
9415863886845
10131323321130
115076a655961
122154bab83a2
13c4cb0b67a1
1464db13b278
15363910da05
hex1e937adb2a

131323321130 has 16 divisors (see below), whose sum is σ = 240257093544. Its totient is φ = 51668191680.

The previous prime is 131323321081. The next prime is 131323321133. The reversal of 131323321130 is 31123323131.

It can be written as a sum of positive squares in 4 ways, for example, as 98832898129 + 32490423001 = 314377^2 + 180251^2 .

It is a super-2 number, since 2×1313233211302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131323321096 and 131323321105.

It is not an unprimeable number, because it can be changed into a prime (131323321133) 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, 107641457 + ... + 107642676.

Almost surely, 2131323321130 is an apocalyptic number.

131323321130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131323321130 is a deficient number, since it is larger than the sum of its proper divisors (108933772414).

131323321130 is a wasteful number, since it uses less digits than its factorization.

131323321130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215284201.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 131323321130 its reverse (31123323131), we get a palindrome (162446644261).

The spelling of 131323321130 in words is "one hundred thirty-one billion, three hundred twenty-three million, three hundred twenty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 61 122 305 610 215284133 430568266 1076420665 2152841330 13132332113 26264664226 65661660565 131323321130