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123642061103 = 1125144781623
BaseRepresentation
bin111001100100110100…
…1000010000100101111
3102211010211100111002102
41303021221002010233
54011204331423403
6132444514245315
711634652115231
oct1631151020457
9384124314072
10123642061103
11484887a1580
121bb6758683b
13b875903202
145dacd24251
153339ac4b88
hex1cc9a4212f

123642061103 has 8 divisors (see below), whose sum is σ = 135419630976. Its totient is φ = 111954055000.

The previous prime is 123642061087. The next prime is 123642061111. The reversal of 123642061103 is 301160246321.

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 123642061103 - 24 = 123642061087 is a prime.

It is a super-3 number, since 3×1236420611033 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123642061603) 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 7 ways as a sum of consecutive naturals, for example, 22388051 + ... + 22393572.

It is an arithmetic number, because the mean of its divisors is an integer number (16927453872).

Almost surely, 2123642061103 is an apocalyptic number.

123642061103 is a deficient number, since it is larger than the sum of its proper divisors (11777569873).

123642061103 is a wasteful number, since it uses less digits than its factorization.

123642061103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44781885.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 123642061103 in words is "one hundred twenty-three billion, six hundred forty-two million, sixty-one thousand, one hundred three".

Divisors: 1 11 251 2761 44781623 492597853 11240187373 123642061103