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12123333030 = 2352657152093
BaseRepresentation
bin10110100101001101…
…10110000110100110
31011021220012010110110
423102212312012212
5144312033124110
65322553033450
7606266426154
oct132246660646
934256163413
1012123333030
11516133a5a6
1224240b5886
1311b2887853
148301643d4
154ae4d3a20
hex2d29b61a6

12123333030 has 32 divisors (see below), whose sum is σ = 29107141344. Its totient is φ = 3231650816.

The previous prime is 12123333007. The next prime is 12123333071. The reversal of 12123333030 is 3033332121.

12123333030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12123332988 and 12123333006.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3664 + ... + 155756.

It is an arithmetic number, because the mean of its divisors is an integer number (909598167).

Almost surely, 212123333030 is an apocalyptic number.

12123333030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123333030 is an abundant number, since it is smaller than the sum of its proper divisors (16983808314).

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

12123333030 is a wasteful number, since it uses less digits than its factorization.

12123333030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154760.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 12123333030 its reverse (3033332121), we get a palindrome (15156665151).

Subtracting from 12123333030 its reverse (3033332121), we obtain a palindrome (9090000909).

The spelling of 12123333030 in words is "twelve billion, one hundred twenty-three million, three hundred thirty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 2657 5314 7971 13285 15942 26570 39855 79710 152093 304186 456279 760465 912558 1520930 2281395 4562790 404111101 808222202 1212333303 2020555505 2424666606 4041111010 6061666515 12123333030