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103311232123 = 1123617661823
BaseRepresentation
bin110000000110111010…
…1000100110001111011
3100212122221022100210111
41200031311010301323
53143040133411443
6115243250125151
710315101661321
oct1401565046173
9325587270714
10103311232123
113a8a5551880
12180328807b7
1399858253a8
145000b21d11
152a49caa69d
hex180dd44c7b

103311232123 has 16 divisors (see below), whose sum is σ = 117794082816. Its totient is φ = 89690117440.

The previous prime is 103311232093. The next prime is 103311232133. The reversal of 103311232123 is 321232113301.

It is not a de Polignac number, because 103311232123 - 229 = 102774361211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103311232094 and 103311232103.

It is not an unprimeable number, because it can be changed into a prime (103311232133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174811 + ... + 487012.

It is an arithmetic number, because the mean of its divisors is an integer number (7362130176).

Almost surely, 2103311232123 is an apocalyptic number.

103311232123 is a deficient number, since it is larger than the sum of its proper divisors (14482850693).

103311232123 is a wasteful number, since it uses less digits than its factorization.

103311232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662474.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 103311232123 its reverse (321232113301), we get a palindrome (424543345424).

The spelling of 103311232123 in words is "one hundred three billion, three hundred eleven million, two hundred thirty-two thousand, one hundred twenty-three".

Divisors: 1 11 23 253 617 6787 14191 156101 661823 7280053 15221929 167441219 408344791 4491792701 9391930193 103311232123