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12030130231 = 71990452107
BaseRepresentation
bin10110011010000110…
…10011100000110111
31011001101210221020221
423031003103200313
5144114203131411
65305423235211
7604055263660
oct131503234067
934041727227
1012030130231
115113770999
1223b8a48b07
131199483b72
14821a22367
154a6223071
hex2cd0d3837

12030130231 has 8 divisors (see below), whose sum is σ = 14472337280. Its totient is φ = 9768827448.

The previous prime is 12030130219. The next prime is 12030130237. The reversal of 12030130231 is 13203103021.

12030130231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12030130231 - 29 = 12030129719 is a prime.

It is a super-2 number, since 2×120301302312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030130237) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45225921 + ... + 45226186.

It is an arithmetic number, because the mean of its divisors is an integer number (1809042160).

Almost surely, 212030130231 is an apocalyptic number.

12030130231 is a deficient number, since it is larger than the sum of its proper divisors (2442207049).

12030130231 is an equidigital number, since it uses as much as digits as its factorization.

12030130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90452133.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12030130231 its reverse (13203103021), we get a palindrome (25233233252).

The spelling of 12030130231 in words is "twelve billion, thirty million, one hundred thirty thousand, two hundred thirty-one".

Divisors: 1 7 19 133 90452107 633164749 1718590033 12030130231