| Base | Representation |
|---|---|
| bin | 111101001001000101… |
| … | …0010111100000010100 |
| 3 | 110112220121101120100200 |
| 4 | 1322102022113200110 |
| 5 | 4122401102211012 |
| 6 | 140152520340500 |
| 7 | 12325523604621 |
| oct | 1722212274024 |
| 9 | 415817346320 |
| 10 | 131301210132 |
| 11 | 50759123604 |
| 12 | 21544614730 |
| 13 | c4c6644561 |
| 14 | 64d8223348 |
| 15 | 36371e23dc |
| hex | 1e92297814 |
131301210132 has 72 divisors (see below), whose sum is σ = 351671412456. Its totient is φ = 41163515904.
The previous prime is 131301210127. The next prime is 131301210137. The reversal of 131301210132 is 231012103131.
It is an interprime number because it is at equal distance from previous prime (131301210127) and next prime (131301210137).
It can be written as a sum of positive squares in 4 ways, for example, as 15854839056 + 115446371076 = 125916^2 + 339774^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131301210137) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 802138 + ... + 951854.
It is an arithmetic number, because the mean of its divisors is an integer number (4884325173).
Almost surely, 2131301210132 is an apocalyptic number.
131301210132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 131301210132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175835706228).
131301210132 is an abundant number, since it is smaller than the sum of its proper divisors (220370202324).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131301210132 is a wasteful number, since it uses less digits than its factorization.
131301210132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 151177 (or 151172 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 131301210132 its reverse (231012103131), we get a palindrome (362313313263).
The spelling of 131301210132 in words is "one hundred thirty-one billion, three hundred one million, two hundred ten thousand, one hundred thirty-two".
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