Search a number
-
+
12013130210231 = 83144736508557
BaseRepresentation
bin1010111011010000011001…
…0110111101101110110111
31120112102222200212220010002
42232310012112331232313
53033310342313211411
641314431132021515
72346630364654553
oct256640626755667
946472880786102
1012013130210231
113911815905117
12142028500189b
13691aaaa51957
142d761d760863
1515c7509e333b
hexaed065bdbb7

12013130210231 has 4 divisors (see below), whose sum is σ = 12157866718872. Its totient is φ = 11868393701592.

The previous prime is 12013130210177. The next prime is 12013130210239. The reversal of 12013130210231 is 13201203131021.

It is a happy number.

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 12013130210231 - 214 = 12013130193847 is a prime.

It is a super-2 number, since 2×120131302102312 (a number of 27 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 (12013130210239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72368254196 + ... + 72368254361.

It is an arithmetic number, because the mean of its divisors is an integer number (3039466679718).

Almost surely, 212013130210231 is an apocalyptic number.

12013130210231 is a deficient number, since it is larger than the sum of its proper divisors (144736508641).

12013130210231 is an equidigital number, since it uses as much as digits as its factorization.

12013130210231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144736508640.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12013130210231 its reverse (13201203131021), we get a palindrome (25214333341252).

The spelling of 12013130210231 in words is "twelve trillion, thirteen billion, one hundred thirty million, two hundred ten thousand, two hundred thirty-one".

Divisors: 1 83 144736508557 12013130210231