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12013003321001 = 87407137437543
BaseRepresentation
bin1010111011001111111011…
…0010111010111010101001
31120112102122212010020210222
42232303332302322322221
53033310112322233001
641314410400215425
72346624264301244
oct256637662727251
946472585106728
1012013003321001
113911760218391
12142024a60a575
13691a8a685077
142d760a97025b
1515c7447cb61b
hexaecfecbaea9

12013003321001 has 4 divisors (see below), whose sum is σ = 12013140845952. Its totient is φ = 12012865796052.

The previous prime is 12013003320971. The next prime is 12013003321019. The reversal of 12013003321001 is 10012330031021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12013003321001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12013003320001) 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, 68631365 + ... + 68806178.

It is an arithmetic number, because the mean of its divisors is an integer number (3003285211488).

Almost surely, 212013003321001 is an apocalyptic number.

It is an amenable number.

12013003321001 is a deficient number, since it is larger than the sum of its proper divisors (137524951).

12013003321001 is an equidigital number, since it uses as much as digits as its factorization.

12013003321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137524950.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12013003321001 its reverse (10012330031021), we get a palindrome (22025333352022).

The spelling of 12013003321001 in words is "twelve trillion, thirteen billion, three million, three hundred twenty-one thousand, one".

Divisors: 1 87407 137437543 12013003321001