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133312013210131 = 7223834507316213
BaseRepresentation
bin11110010011111100011111…
…001100010001001000010011
3122111000111121102011220012121
4132103330133030101020103
5114433141000340211011
61151310405435235111
740036321651404400
oct3623743714211023
9574014542156177
10133312013210131
1139528342024838
1212b509175a8a97
135950365a22242
1424cc49b8932a7
151062b40e7ae71
hex793f1f311213

133312013210131 has 48 divisors (see below), whose sum is σ = 163806218521344. Its totient is φ = 107958131176896.

The previous prime is 133312013210059. The next prime is 133312013210143. The reversal of 133312013210131 is 131012310213331.

It is not a de Polignac number, because 133312013210131 - 221 = 133312011112979 is a prime.

It is a super-2 number, since 2×1333120132101312 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133312013210096 and 133312013210105.

It is not an unprimeable number, because it can be changed into a prime (133312013210191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 421431181 + ... + 421747393.

It is an arithmetic number, because the mean of its divisors is an integer number (3412629552528).

Almost surely, 2133312013210131 is an apocalyptic number.

133312013210131 is a deficient number, since it is larger than the sum of its proper divisors (30494205311213).

133312013210131 is a wasteful number, since it uses less digits than its factorization.

133312013210131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320840 (or 320833 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 133312013210131 its reverse (131012310213331), we get a palindrome (264324323423462).

The spelling of 133312013210131 in words is "one hundred thirty-three trillion, three hundred twelve billion, thirteen million, two hundred ten thousand, one hundred thirty-one".

Divisors: 1 7 23 49 83 161 581 1127 1909 4067 4507 13363 31549 93541 103661 220843 316213 374081 725627 2213491 2618567 5079389 7272899 8603863 15494437 18329969 26245679 50910293 60227041 183719753 356372051 421589287 603650617 1286038271 1425171991 4225554319 9976203937 29578880233 32778955793 69833427559 118289275253 229452690551 828024926771 1606168833857 2720653330819 5796174487397 19044573315733 133312013210131