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103131120043 = 723640565963
BaseRepresentation
bin110000000001100011…
…0000000000110101011
3100212012101101201110201
41200003012000012223
53142203031320133
6115213333453031
710310454025240
oct1400306000653
9325171351421
10103131120043
113a812912a16
1217ba24a1177
1399574124b3
144dc4c395c7
152a3907dd7d
hex18031801ab

103131120043 has 8 divisors (see below), whose sum is σ = 122988665088. Its totient is φ = 84554706984.

The previous prime is 103131120019. The next prime is 103131120067. The reversal of 103131120043 is 340021131301.

It is an interprime number because it is at equal distance from previous prime (103131120019) and next prime (103131120067).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103131120043 - 213 = 103131111851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103131120043.

It is not an unprimeable number, because it can be changed into a prime (103131120343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320282821 + ... + 320283142.

It is an arithmetic number, because the mean of its divisors is an integer number (15373583136).

Almost surely, 2103131120043 is an apocalyptic number.

103131120043 is a deficient number, since it is larger than the sum of its proper divisors (19857545045).

103131120043 is an equidigital number, since it uses as much as digits as its factorization.

103131120043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640565993.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103131120043 its reverse (340021131301), we get a palindrome (443152251344).

The spelling of 103131120043 in words is "one hundred three billion, one hundred thirty-one million, one hundred twenty thousand, forty-three".

Divisors: 1 7 23 161 640565963 4483961741 14733017149 103131120043