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20330122312001 = 129191573660679
BaseRepresentation
bin1001001111101011110011…
…01101111111100101000001
32122222112121011211112022002
410213311321231333211001
510131042042302441001
6111123310152553345
74165542245253665
oct447657155774501
978875534745262
1020330122312001
116528a58049167
1223441449b2855
13b46178930aa8
14503da9b668a5
15253c76c7e46b
hex127d79b7f941

20330122312001 has 4 divisors (see below), whose sum is σ = 20331695985600. Its totient is φ = 20328548638404.

The previous prime is 20330122311959. The next prime is 20330122312009. The reversal of 20330122312001 is 10021322103302.

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 20330122312001 - 218 = 20330122049857 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 (20330122312009) 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, 786817421 + ... + 786843258.

It is an arithmetic number, because the mean of its divisors is an integer number (5082923996400).

Almost surely, 220330122312001 is an apocalyptic number.

It is an amenable number.

20330122312001 is a deficient number, since it is larger than the sum of its proper divisors (1573673599).

20330122312001 is a wasteful number, since it uses less digits than its factorization.

20330122312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573673598.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20330122312001 its reverse (10021322103302), we get a palindrome (30351444415303).

The spelling of 20330122312001 in words is "twenty trillion, three hundred thirty billion, one hundred twenty-two million, three hundred twelve thousand, one".

Divisors: 1 12919 1573660679 20330122312001