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131303321233 = 7211003243539
BaseRepresentation
bin111101001001001001…
…0011010111010010001
3110112220202100211020121
41322102102122322101
54122402122234413
6140153033510241
712325550546500
oct1722222327221
9415822324217
10131303321233
115075a335717
1221545272381
13c4c6c03426
1464d8612837
1536374acb8d
hex1e9249ae91

131303321233 has 12 divisors (see below), whose sum is σ = 152755107120. Its totient is φ = 112535013192.

The previous prime is 131303321231. The next prime is 131303321249. The reversal of 131303321233 is 332123303131.

It is not a de Polignac number, because 131303321233 - 21 = 131303321231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131303321198 and 131303321207.

It is not an unprimeable number, because it can be changed into a prime (131303321231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417378 + ... + 660916.

It is an arithmetic number, because the mean of its divisors is an integer number (12729592260).

Almost surely, 2131303321233 is an apocalyptic number.

It is an amenable number.

131303321233 is a deficient number, since it is larger than the sum of its proper divisors (21451785887).

131303321233 is a wasteful number, since it uses less digits than its factorization.

131303321233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254556 (or 254549 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 131303321233 its reverse (332123303131), we get a palindrome (463426624364).

The spelling of 131303321233 in words is "one hundred thirty-one billion, three hundred three million, three hundred twenty-one thousand, two hundred thirty-three".

Divisors: 1 7 49 11003 77021 243539 539147 1704773 11933411 2679659617 18757617319 131303321233