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12002123130 = 235543773583
BaseRepresentation
bin10110010110110000…
…11101110101111010
31010222110010000201220
423023120131311322
5144040020420010
65302543052510
7603265235424
oct131330356572
933873100656
1012002123130
1150a9981828
1223ab5a1136
13119372900a
1481c011814
154a3a3e970
hex2cb61dd7a

12002123130 has 32 divisors (see below), whose sum is σ = 28810785024. Its totient is φ = 3199934016.

The previous prime is 12002123117. The next prime is 12002123141. The reversal of 12002123130 is 3132120021.

It is a super-3 number, since 3×120021231303 (a number of 31 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126319 + ... + 199901.

It is an arithmetic number, because the mean of its divisors is an integer number (900337032).

Almost surely, 212002123130 is an apocalyptic number.

12002123130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12002123130 is an abundant number, since it is smaller than the sum of its proper divisors (16808661894).

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

12002123130 is a wasteful number, since it uses less digits than its factorization.

12002123130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79030.

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

Adding to 12002123130 its reverse (3132120021), we get a palindrome (15134243151).

The spelling of 12002123130 in words is "twelve billion, two million, one hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 5437 10874 16311 27185 32622 54370 73583 81555 147166 163110 220749 367915 441498 735830 1103745 2207490 400070771 800141542 1200212313 2000353855 2400424626 4000707710 6001061565 12002123130