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20103021321411 = 37957286729591
BaseRepresentation
bin1001001001000100110010…
…11100011101110011000011
32122011211102010020212201110
410210202121130131303003
510113331441424241121
6110431111150334403
74143252415554420
oct444423134356303
978154363225643
1020103021321411
1164507094a6686
1223081251ba403
13b2a925a31712
144d6dc4674d47
1524cdd4476d76
hex12489971dcc3

20103021321411 has 8 divisors (see below), whose sum is σ = 30633175346944. Its totient is φ = 11487440755080.

The previous prime is 20103021321391. The next prime is 20103021321437. The reversal of 20103021321411 is 11412312030102.

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

It is not a de Polignac number, because 20103021321411 - 214 = 20103021305027 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: 957286729591 = 20103021321411 / (2 + 0 + 1 + 0 + 3 + 0 + 2 + 1 + 3 + 2 + 1 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20103021326411) 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, 478643364775 + ... + 478643364816.

It is an arithmetic number, because the mean of its divisors is an integer number (3829146918368).

Almost surely, 220103021321411 is an apocalyptic number.

20103021321411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20103021321411 is a deficient number, since it is larger than the sum of its proper divisors (10530154025533).

20103021321411 is an equidigital number, since it uses as much as digits as its factorization.

20103021321411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957286729601.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20103021321411 its reverse (11412312030102), we get a palindrome (31515333351513).

The spelling of 20103021321411 in words is "twenty trillion, one hundred three billion, twenty-one million, three hundred twenty-one thousand, four hundred eleven".

Divisors: 1 3 7 21 957286729591 2871860188773 6701007107137 20103021321411