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12030113221 = 712371389319
BaseRepresentation
bin10110011010000110…
…01111010111000101
31011001101210001220221
423031003033113011
5144114202110341
65305423024341
7604055163250
oct131503172705
934041701827
1012030113221
11511375a135
1223b8a3b0b1
1311994791b9
14821a1a097
154a621ced1
hex2cd0cf5c5

12030113221 has 8 divisors (see below), whose sum is σ = 13759825280. Its totient is φ = 10303182288.

The previous prime is 12030113191. The next prime is 12030113237. The reversal of 12030113221 is 12231103021.

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

It is not a de Polignac number, because 12030113221 - 211 = 12030111173 is a prime.

It is a super-2 number, since 2×120301132212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12030113195 and 12030113204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030113521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686001 + ... + 703318.

It is an arithmetic number, because the mean of its divisors is an integer number (1719978160).

Almost surely, 212030113221 is an apocalyptic number.

It is an amenable number.

12030113221 is a deficient number, since it is larger than the sum of its proper divisors (1729712059).

12030113221 is a wasteful number, since it uses less digits than its factorization.

12030113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390563.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12030113221 its reverse (12231103021), we get a palindrome (24261216242).

The spelling of 12030113221 in words is "twelve billion, thirty million, one hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 7 1237 8659 1389319 9725233 1718587603 12030113221