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20122103132103 = 37958195387243
BaseRepresentation
bin1001001001101000010101…
…10011110010111111000111
32122020122122222001022000210
410210310022303302333013
510114140031400211403
6110443544440010503
74144526321354520
oct444641263627707
978218588038023
1020122103132103
1164588106aa465
12230b96b760a33
13b2c67711476b
144d7cb4a27847
1524d64e7c1b03
hex124d0acf2fc7

20122103132103 has 8 divisors (see below), whose sum is σ = 30662252391808. Its totient is φ = 11498344646904.

The previous prime is 20122103132101. The next prime is 20122103132137. The reversal of 20122103132103 is 30123130122102.

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

It is not a de Polignac number, because 20122103132103 - 21 = 20122103132101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 958195387243 = 20122103132103 / (2 + 0 + 1 + 2 + 2 + 1 + 0 + 3 + 1 + 3 + 2 + 1 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20122103132103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122103132101) 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, 479097693601 + ... + 479097693642.

It is an arithmetic number, because the mean of its divisors is an integer number (3832781548976).

Almost surely, 220122103132103 is an apocalyptic number.

20122103132103 is a deficient number, since it is larger than the sum of its proper divisors (10540149259705).

20122103132103 is an equidigital number, since it uses as much as digits as its factorization.

20122103132103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958195387253.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20122103132103 its reverse (30123130122102), we get a palindrome (50245233254205).

The spelling of 20122103132103 in words is "twenty trillion, one hundred twenty-two billion, one hundred three million, one hundred thirty-two thousand, one hundred three".

Divisors: 1 3 7 21 958195387243 2874586161729 6707367710701 20122103132103