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20033200333121 = 155312899678257
BaseRepresentation
bin1001000111000010101111…
…10010100010000101000001
32121221011012011202011202012
410203201113302202011001
510111210443241124441
6110335043012302305
74135231244135663
oct443412762420501
977834164664665
1020033200333121
11642403a361778
1222b669a311995
13b24179703171
144d387d73a533
1524b1999269eb
hex123857ca2141

20033200333121 has 4 divisors (see below), whose sum is σ = 20046100012932. Its totient is φ = 20020300653312.

The previous prime is 20033200333087. The next prime is 20033200333129. The reversal of 20033200333121 is 12133300233002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 645347122225 + 19387853210896 = 803335^2 + 4403164^2 .

It is a cyclic number.

It is not a de Polignac number, because 20033200333121 - 26 = 20033200333057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20033200333129) 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, 6449837576 + ... + 6449840681.

It is an arithmetic number, because the mean of its divisors is an integer number (5011525003233).

Almost surely, 220033200333121 is an apocalyptic number.

It is an amenable number.

20033200333121 is a deficient number, since it is larger than the sum of its proper divisors (12899679811).

20033200333121 is a wasteful number, since it uses less digits than its factorization.

20033200333121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12899679810.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20033200333121 its reverse (12133300233002), we get a palindrome (32166500566123).

The spelling of 20033200333121 in words is "twenty trillion, thirty-three billion, two hundred million, three hundred thirty-three thousand, one hundred twenty-one".

Divisors: 1 1553 12899678257 20033200333121