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12130032120 = 2335735113751
BaseRepresentation
bin10110100110000000…
…11001100111111000
31011022100210110212220
423103000121213320
5144320242011440
65323352404040
7606410400063
oct132300314770
934270713786
1012130032120
1151650a5738
1224263a6620
1311b4091acb
14830dc98da
154aeda88d0
hex2d30199f8

12130032120 has 64 divisors (see below), whose sum is σ = 36397693440. Its totient is φ = 3234000000.

The previous prime is 12130032097. The next prime is 12130032127. The reversal of 12130032120 is 2123003121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12130032120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130032127) 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, 875245 + ... + 888995.

It is an arithmetic number, because the mean of its divisors is an integer number (568713960).

Almost surely, 212130032120 is an apocalyptic number.

12130032120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130032120 is an abundant number, since it is smaller than the sum of its proper divisors (24267661320).

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

12130032120 is a wasteful number, since it uses less digits than its factorization.

12130032120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21116 (or 21112 counting only the distinct ones).

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

Adding to 12130032120 its reverse (2123003121), we get a palindrome (14253035241).

The spelling of 12130032120 in words is "twelve billion, one hundred thirty million, thirty-two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 7351 13751 14702 22053 27502 29404 36755 41253 44106 55004 58808 68755 73510 82506 88212 110008 110265 137510 147020 165012 176424 206265 220530 275020 294040 330024 412530 441060 550040 825060 882120 1650120 101083601 202167202 303250803 404334404 505418005 606501606 808668808 1010836010 1213003212 1516254015 2021672020 2426006424 3032508030 4043344040 6065016060 12130032120