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2002101331231 = 172922717890121
BaseRepresentation
bin11101001000100110100…
…010011110010100011111
321002101202212212112111201
4131020212202132110133
5230300300420044411
64131430323500331
7264434636345131
oct35104642362437
97071685775451
102002101331231
117020a5009071
1228402b8276a7
13116a499ca131
146cc8b9a5051
153712c7093c1
hex1d22689e51f

2002101331231 has 16 divisors (see below), whose sum is σ = 2202631820640. Its totient is φ = 1811338869760.

The previous prime is 2002101331169. The next prime is 2002101331247. The reversal of 2002101331231 is 1321331012002.

It is not a de Polignac number, because 2002101331231 - 211 = 2002101329183 is a prime.

It is a super-2 number, since 2×20021013312312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002101331199 and 2002101331208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002101931231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8833150 + ... + 9056971.

It is an arithmetic number, because the mean of its divisors is an integer number (137664488790).

Almost surely, 22002101331231 is an apocalyptic number.

2002101331231 is a deficient number, since it is larger than the sum of its proper divisors (200530489409).

2002101331231 is a wasteful number, since it uses less digits than its factorization.

2002101331231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17890394.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2002101331231 its reverse (1321331012002), we get a palindrome (3323432343233).

It can be divided in two parts, 2002101 and 331231, that added together give a palindrome (2333332).

The spelling of 2002101331231 in words is "two trillion, two billion, one hundred one million, three hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 17 29 227 493 3859 6583 111911 17890121 304132057 518813509 4061057467 8819829653 69037976939 117770666543 2002101331231