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103131233131 is a prime number
BaseRepresentation
bin110000000001100011…
…0011011101101101011
3100212012101121110121011
41200003012123231223
53142203043430011
6115213340124351
710310455006033
oct1400306335553
9325171543534
10103131233131
113a81298a983
1217ba25366b7
139957451b04
144dc4c688c3
152a390a2621
hex180319bb6b

103131233131 has 2 divisors, whose sum is σ = 103131233132. Its totient is φ = 103131233130.

The previous prime is 103131233129. The next prime is 103131233173. The reversal of 103131233131 is 131332131301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103131233131 - 21 = 103131233129 is a prime.

It is a super-2 number, since 2×1031312331312 (a number of 23 digits) contains 22 as substring.

Together with 103131233129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (103131230131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51565616565 + 51565616566.

It is an arithmetic number, because the mean of its divisors is an integer number (51565616566).

Almost surely, 2103131233131 is an apocalyptic number.

103131233131 is a deficient number, since it is larger than the sum of its proper divisors (1).

103131233131 is an equidigital number, since it uses as much as digits as its factorization.

103131233131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 103131233131 its reverse (131332131301), we get a palindrome (234463364432).

The spelling of 103131233131 in words is "one hundred three billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred thirty-one".