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12020042432101 = 114230725828613
BaseRepresentation
bin1010111011101010001001…
…0110111111111001100101
31120120002211102110010221111
42232322202112333321211
53033414021330311401
641321533052545021
72350263566614114
oct256724226777145
946502742403844
1012020042432101
113914742655780
121421693a82171
1369263cb03072
142d7ab778bc7b
1515ca0776de51
hexaeea25bfe65

12020042432101 has 8 divisors (see below), whose sum is σ = 13113084013344. Its totient is φ = 10927052592720.

The previous prime is 12020042432089. The next prime is 12020042432143. The reversal of 12020042432101 is 10123424002021.

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

It is not a de Polignac number, because 12020042432101 - 231 = 12017894948453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020042430101) 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, 12448930 + ... + 13379683.

It is an arithmetic number, because the mean of its divisors is an integer number (1639135501668).

Almost surely, 212020042432101 is an apocalyptic number.

12020042432101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12020042432101 is a deficient number, since it is larger than the sum of its proper divisors (1093041581243).

12020042432101 is a wasteful number, since it uses less digits than its factorization.

12020042432101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25870931.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12020042432101 its reverse (10123424002021), we get a palindrome (22143466434122).

The spelling of 12020042432101 in words is "twelve trillion, twenty billion, forty-two million, four hundred thirty-two thousand, one hundred one".

Divisors: 1 11 42307 465377 25828613 284114743 1092731130191 12020042432101