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130021320012 = 22389237751217
BaseRepresentation
bin111100100010111011…
…1111110010101001100
3110102121102001102011220
41321011313332111030
54112240424220022
6135421520043340
712252022661553
oct1710567762514
9412542042156
10130021320012
1150161711181
1221247a63550
13c35142aa1c
146416258d9a
1535aeb7585c
hex1e45dfe54c

130021320012 has 48 divisors (see below), whose sum is σ = 306926938080. Its totient is φ = 42834604032.

The previous prime is 130021320007. The next prime is 130021320017. The reversal of 130021320012 is 210023120031.

It is an interprime number because it is at equal distance from previous prime (130021320007) and next prime (130021320017).

It is a junction number, because it is equal to n+sod(n) for n = 130021319973 and 130021320000.

It is not an unprimeable number, because it can be changed into a prime (130021320017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2513028 + ... + 2564244.

It is an arithmetic number, because the mean of its divisors is an integer number (6394311210).

Almost surely, 2130021320012 is an apocalyptic number.

130021320012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130021320012 is an abundant number, since it is smaller than the sum of its proper divisors (176905618068).

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

130021320012 is a wasteful number, since it uses less digits than its factorization.

130021320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53690 (or 53688 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 130021320012 its reverse (210023120031), we get a palindrome (340044440043).

The spelling of 130021320012 in words is "one hundred thirty billion, twenty-one million, three hundred twenty thousand, twelve".

Divisors: 1 2 3 4 6 12 89 178 267 356 534 1068 2377 4754 7131 9508 14262 28524 51217 102434 153651 204868 211553 307302 423106 614604 634659 846212 1269318 2538636 4558313 9116626 13674939 18233252 27349878 54699756 121742809 243485618 365228427 486971236 730456854 1460913708 10835110001 21670220002 32505330003 43340440004 65010660006 130021320012