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123103101131 = 437873637691
BaseRepresentation
bin111001010100110000…
…1000100000011001011
3102202202021012110222222
41302221201010003023
54004103343214011
6132315222404255
711615416044323
oct1625141040313
9382667173888
10123103101131
1148231544a0a
121ba36b9068b
13b7bb059a9a
145d5b50a283
153307612ddb
hex1ca98440cb

123103101131 has 8 divisors (see below), whose sum is σ = 126126057024. Its totient is φ = 120087422280.

The previous prime is 123103101127. The next prime is 123103101133. The reversal of 123103101131 is 131101301321.

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 123103101131 - 22 = 123103101127 is a prime.

It is a super-2 number, since 2×1231031011312 (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 (123103101133) 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, 1785005 + ... + 1852686.

It is an arithmetic number, because the mean of its divisors is an integer number (15765757128).

Almost surely, 2123103101131 is an apocalyptic number.

123103101131 is a deficient number, since it is larger than the sum of its proper divisors (3022955893).

123103101131 is an equidigital number, since it uses as much as digits as its factorization.

123103101131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638521.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 123103101131 its reverse (131101301321), we get a palindrome (254204402452).

The spelling of 123103101131 in words is "one hundred twenty-three billion, one hundred three million, one hundred one thousand, one hundred thirty-one".

Divisors: 1 43 787 33841 3637691 156420713 2862862817 123103101131