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12102310100 = 2252315966169
BaseRepresentation
bin10110100010101101…
…01001100011010100
31011020102122001102102
423101112221203110
5144241142410400
65320522301232
7605622636626
oct132126514324
934212561372
1012102310100
115150490781
122419057818
1311ab40694a
1482b450c16
154ac72e9d5
hex2d15a98d4

12102310100 has 72 divisors (see below), whose sum is σ = 27569068800. Its totient is φ = 4605292800.

The previous prime is 12102310097. The next prime is 12102310111. The reversal of 12102310100 is 101320121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149816 + ... + 215984.

Almost surely, 212102310100 is an apocalyptic number.

12102310100 is a gapful number since it is divisible by the number (10) 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 12102310100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13784534400).

12102310100 is an abundant number, since it is smaller than the sum of its proper divisors (15466758700).

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

12102310100 is a wasteful number, since it uses less digits than its factorization.

12102310100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66273 (or 66266 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12102310100 its reverse (101320121), we get a palindrome (12203630221).

The spelling of 12102310100 in words is "twelve billion, one hundred two million, three hundred ten thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 31 50 59 62 100 118 124 155 236 295 310 590 620 775 1180 1475 1550 1829 2950 3100 3658 5900 7316 9145 18290 36580 45725 66169 91450 132338 182900 264676 330845 661690 1323380 1654225 2051239 3308450 3903971 4102478 6616900 7807942 8204956 10256195 15615884 19519855 20512390 39039710 41024780 51280975 78079420 97599275 102561950 121023101 195198550 205123900 242046202 390397100 484092404 605115505 1210231010 2420462020 3025577525 6051155050 12102310100