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12030111342 = 232668339519
BaseRepresentation
bin10110011010000110…
…01110111001101110
31011001101202222100100
423031003032321232
5144114202030332
65305423011530
7604055154624
oct131503167156
934041688310
1012030111342
115113758787
1223b8a39ba6
1311994783a2
14821a19514
154a621c67c
hex2cd0cee6e

12030111342 has 12 divisors (see below), whose sum is σ = 26065241280. Its totient is φ = 4010037108.

The previous prime is 12030111323. The next prime is 12030111347. The reversal of 12030111342 is 24311103021.

12030111342 is a `hidden beast` number, since 1 + 20 + 301 + 1 + 1 + 342 = 666.

12030111342 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 668339519 = 12030111342 / (1 + 2 + 0 + 3 + 0 + 1 + 1 + 1 + 3 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030111347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 334169742 + ... + 334169777.

It is an arithmetic number, because the mean of its divisors is an integer number (2172103440).

Almost surely, 212030111342 is an apocalyptic number.

12030111342 is an abundant number, since it is smaller than the sum of its proper divisors (14035129938).

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

12030111342 is a wasteful number, since it uses less digits than its factorization.

12030111342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668339527 (or 668339524 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12030111342 its reverse (24311103021), we get a palindrome (36341214363).

The spelling of 12030111342 in words is "twelve billion, thirty million, one hundred eleven thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 668339519 1336679038 2005018557 4010037114 6015055671 12030111342