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131423330331 = 3415111099689
BaseRepresentation
bin111101001100101110…
…0001110000000011011
3110120020010011220210000
41322121130032000123
54123123333032311
6140213002024043
712331535606316
oct1723134160033
9416203156700
10131423330331
1150811053297
12215794a8023
13c515a31527
14650a53197d
153642cb6056
hex1e9970e01b

131423330331 has 40 divisors (see below), whose sum is σ = 197822512800. Its totient is φ = 86947862400.

The previous prime is 131423330293. The next prime is 131423330341. The reversal of 131423330331 is 133033324131.

It is not a de Polignac number, because 131423330331 - 214 = 131423313947 is a prime.

It is a super-2 number, since 2×1314233303312 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 131423330295 and 131423330304.

It is not an unprimeable number, because it can be changed into a prime (131423330341) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13559335 + ... + 13569023.

It is an arithmetic number, because the mean of its divisors is an integer number (4945562820).

Almost surely, 2131423330331 is an apocalyptic number.

131423330331 is a deficient number, since it is larger than the sum of its proper divisors (66399182469).

131423330331 is a wasteful number, since it uses less digits than its factorization.

131423330331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10961 (or 10952 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 131423330331 its reverse (133033324131), we get a palindrome (264456654462).

The spelling of 131423330331 in words is "one hundred thirty-one billion, four hundred twenty-three million, three hundred thirty thousand, three hundred thirty-one".

Divisors: 1 3 9 27 81 151 453 1109 1359 3327 4077 9689 9981 12231 29067 29943 87201 89829 167459 261603 502377 784809 1463039 1507131 4389117 4521393 10745101 13167351 13564179 32235303 39502053 96705909 118506159 290117727 870353181 1622510251 4867530753 14602592259 43807776777 131423330331