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105551322123 = 3136144367937
BaseRepresentation
bin110001001001101011…
…0010101110000001011
3101002110001102201120210
41202103112111300023
53212132114301443
6120253431052203
710424442302052
oct1422326256013
9332401381523
10105551322123
1140844a73625
1218558b11063
139c51952530
145174437399
152b2b795c33
hex1893595c0b

105551322123 has 16 divisors (see below), whose sum is σ = 154045480736. Its totient is φ = 63889827840.

The previous prime is 105551322119. The next prime is 105551322143. The reversal of 105551322123 is 321223155501.

It is not a de Polignac number, because 105551322123 - 22 = 105551322119 is a prime.

It is a super-2 number, since 2×1055513221232 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105551322143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22181590 + ... + 22186347.

It is an arithmetic number, because the mean of its divisors is an integer number (9627842546).

Almost surely, 2105551322123 is an apocalyptic number.

105551322123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

105551322123 is a deficient number, since it is larger than the sum of its proper divisors (48494158613).

105551322123 is a wasteful number, since it uses less digits than its factorization.

105551322123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44368014.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 105551322123 its reverse (321223155501), we get a palindrome (426774477624).

The spelling of 105551322123 in words is "one hundred five billion, five hundred fifty-one million, three hundred twenty-two thousand, one hundred twenty-three".

Divisors: 1 3 13 39 61 183 793 2379 44367937 133103811 576783181 1730349543 2706444157 8119332471 35183774041 105551322123