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20310023122001 = 139146115274259
BaseRepresentation
bin1001001111000110010111…
…01101101010110001010001
32122220121201102122212221122
410213203023231222301101
510130224411404401001
6111110143521332025
74164231210050264
oct447431355526121
978817642585848
1020310023122001
116520483631238
122340275797015
13b442c4837262
14503020620cdb
1525349c46db1b
hex1278cbb6ac51

20310023122001 has 4 divisors (see below), whose sum is σ = 20456138396400. Its totient is φ = 20163907847604.

The previous prime is 20310023121989. The next prime is 20310023122027. The reversal of 20310023122001 is 10022132001302.

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 20310023122001 - 210 = 20310023120977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310023122091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73057636991 + ... + 73057637268.

It is an arithmetic number, because the mean of its divisors is an integer number (5114034599100).

Almost surely, 220310023122001 is an apocalyptic number.

It is an amenable number.

20310023122001 is a deficient number, since it is larger than the sum of its proper divisors (146115274399).

20310023122001 is a wasteful number, since it uses less digits than its factorization.

20310023122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146115274398.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20310023122001 its reverse (10022132001302), we get a palindrome (30332155123303).

The spelling of 20310023122001 in words is "twenty trillion, three hundred ten billion, twenty-three million, one hundred twenty-two thousand, one".

Divisors: 1 139 146115274259 20310023122001