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10320131123 = 25867398969
BaseRepresentation
bin10011001110010000…
…01011010000110011
3222122020010222110122
421213020023100303
5132113423143443
64424020120455
7513512444561
oct114710132063
928566128418
1010320131123
114416499295
12200023612b
13c86116283
146dc896a31
15406046968
hex26720b433

10320131123 has 4 divisors (see below), whose sum is σ = 10320555960. Its totient is φ = 10319706288.

The previous prime is 10320131117. The next prime is 10320131141. The reversal of 10320131123 is 32113102301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10320131123 - 210 = 10320130099 is a prime.

It is a super-2 number, since 2×103201311232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10320131183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173618 + ... + 225351.

It is an arithmetic number, because the mean of its divisors is an integer number (2580138990).

Almost surely, 210320131123 is an apocalyptic number.

10320131123 is a deficient number, since it is larger than the sum of its proper divisors (424837).

10320131123 is an equidigital number, since it uses as much as digits as its factorization.

10320131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424836.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 10320131123 its reverse (32113102301), we get a palindrome (42433233424).

The spelling of 10320131123 in words is "ten billion, three hundred twenty million, one hundred thirty-one thousand, one hundred twenty-three".

Divisors: 1 25867 398969 10320131123