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31103010102231 = 3217365955558253
BaseRepresentation
bin1110001001001101110111…
…10111100101101111010111
311002010102022020210120012200
413010212323313211233113
513034042431041232411
6150052305305415543
76360055404513054
oct704467367455727
9132112266716180
1031103010102231
119a01792392441
1235a3b7b19a5b3
131448002a27cb2
1479757252a02b
1538e0d9b66e56
hex1c49bbde5bd7

31103010102231 has 24 divisors (see below), whose sum is σ = 47582311055760. Its totient is φ = 19510280238336.

The previous prime is 31103010102217. The next prime is 31103010102253. The reversal of 31103010102231 is 13220101030113.

31103010102231 is a `hidden beast` number, since 31 + 1 + 0 + 301 + 0 + 102 + 231 = 666.

It is not a de Polignac number, because 31103010102231 - 27 = 31103010102103 is a prime.

It is a super-2 number, since 2×311030101022312 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103010107231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27219300 + ... + 28338953.

It is an arithmetic number, because the mean of its divisors is an integer number (1982596293990).

Almost surely, 231103010102231 is an apocalyptic number.

31103010102231 is a deficient number, since it is larger than the sum of its proper divisors (16479300953529).

31103010102231 is a wasteful number, since it uses less digits than its factorization.

31103010102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55561935 (or 55561932 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 31103010102231 its reverse (13220101030113), we get a palindrome (44323111132344).

The spelling of 31103010102231 in words is "thirty-one trillion, one hundred three billion, ten million, one hundred two thousand, two hundred thirty-one".

Divisors: 1 3 9 17 51 153 3659 10977 32931 62203 186609 559827 55558253 166674759 500024277 944490301 2833470903 8500412709 203287647727 609862943181 1829588829543 3455890011359 10367670034077 31103010102231