Search a number
-
+
12030003131 = 17707647243
BaseRepresentation
bin10110011010000101…
…10100011110111011
31011001101120110220112
423031002310132323
5144114140100011
65305420414535
7604054224266
oct131502643673
934041513815
1012030003131
115113694453
1223b89a744b
13119943b063
148219cbcdd
154a61ea58b
hex2cd0b47bb

12030003131 has 4 divisors (see below), whose sum is σ = 12737650392. Its totient is φ = 11322355872.

The previous prime is 12030003113. The next prime is 12030003133. The reversal of 12030003131 is 13130003021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12030003131 - 26 = 12030003067 is a prime.

It is a super-3 number, since 3×120300031313 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12030003133) 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 3 ways as a sum of consecutive naturals, for example, 353823605 + ... + 353823638.

It is an arithmetic number, because the mean of its divisors is an integer number (3184412598).

Almost surely, 212030003131 is an apocalyptic number.

12030003131 is a deficient number, since it is larger than the sum of its proper divisors (707647261).

12030003131 is an equidigital number, since it uses as much as digits as its factorization.

12030003131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707647260.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 12030003131 its reverse (13130003021), we get a palindrome (25160006152).

The spelling of 12030003131 in words is "twelve billion, thirty million, three thousand, one hundred thirty-one".

Divisors: 1 17 707647243 12030003131