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12000405012001 = 71714343573143
BaseRepresentation
bin1010111010100000111111…
…1000001011111000100001
31120111020010212011211210221
42232220033320023320201
53033103312140341001
641304524314523041
72346000136400350
oct256501770137041
946436125154727
1012000405012001
11390738586336a
121419913436481
13690830597563
142d6b736c9997
1515c2587741a1
hexaea0fe0be21

12000405012001 has 4 divisors (see below), whose sum is σ = 13714748585152. Its totient is φ = 10286061438852.

The previous prime is 12000405011999. The next prime is 12000405012017. The reversal of 12000405012001 is 10021050400021.

12000405012001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 12000405012001 - 21 = 12000405011999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000405012031) 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, 857171786565 + ... + 857171786578.

It is an arithmetic number, because the mean of its divisors is an integer number (3428687146288).

Almost surely, 212000405012001 is an apocalyptic number.

It is an amenable number.

12000405012001 is a deficient number, since it is larger than the sum of its proper divisors (1714343573151).

12000405012001 is an equidigital number, since it uses as much as digits as its factorization.

12000405012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714343573150.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 12000405012001 its reverse (10021050400021), we get a palindrome (22021455412022).

The spelling of 12000405012001 in words is "twelve trillion, four hundred five million, twelve thousand, one".

Divisors: 1 7 1714343573143 12000405012001