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12311020300 = 2252791558357
BaseRepresentation
bin10110111011100101…
…10100001100001100
31011202222100121222211
423131302310030030
5200203110122200
65353335520204
7614035642315
oct133562641414
934688317884
1012311020300
115248282847
122476b29064
1312127206c7
1484b05d60c
154c0c09aba
hex2ddcb430c

12311020300 has 36 divisors (see below), whose sum is σ = 27053094880. Its totient is φ = 4862070720.

The previous prime is 12311020279. The next prime is 12311020343. The reversal of 12311020300 is 302011321.

12311020300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×123110203002 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 771279 + ... + 787078.

Almost surely, 212311020300 is an apocalyptic number.

12311020300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12311020300 is an abundant number, since it is smaller than the sum of its proper divisors (14742074580).

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

12311020300 is a wasteful number, since it uses less digits than its factorization.

12311020300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558450 (or 1558443 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12311020300 its reverse (302011321), we get a palindrome (12613031621).

The spelling of 12311020300 in words is "twelve billion, three hundred eleven million, twenty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 79 100 158 316 395 790 1580 1975 3950 7900 1558357 3116714 6233428 7791785 15583570 31167140 38958925 77917850 123110203 155835700 246220406 492440812 615551015 1231102030 2462204060 3077755075 6155510150 12311020300