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123551331041 = 1931451441187
BaseRepresentation
bin111001100010000111…
…0111011001011100001
3102210220111121220211202
41303010032323023201
54011013120043131
6132431513450545
711632500662135
oct1630416731341
9383814556752
10123551331041
1148441561756
121bb41110a55
13b85cb86b98
145da0c673c5
153331b51bcb
hex1cc43bb2e1

123551331041 has 8 divisors (see below), whose sum is σ = 124277365344. Its totient is φ = 122826182400.

The previous prime is 123551331037. The next prime is 123551331047. The reversal of 123551331041 is 140133155321.

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

It is a cyclic number.

It is not a de Polignac number, because 123551331041 - 22 = 123551331037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123551330995 and 123551331013.

It is not an unprimeable number, because it can be changed into a prime (123551331047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59450 + ... + 500636.

It is an arithmetic number, because the mean of its divisors is an integer number (15534670668).

Almost surely, 2123551331041 is an apocalyptic number.

It is an amenable number.

123551331041 is a deficient number, since it is larger than the sum of its proper divisors (726034303).

123551331041 is a wasteful number, since it uses less digits than its factorization.

123551331041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442831.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 123551331041 its reverse (140133155321), we get a palindrome (263684486362).

The spelling of 123551331041 in words is "one hundred twenty-three billion, five hundred fifty-one million, three hundred thirty-one thousand, forty-one".

Divisors: 1 193 1451 280043 441187 85149091 640162337 123551331041