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11231310023 = 30113730093
BaseRepresentation
bin10100111010111000…
…00011000011000111
31001222201200122221022
422131130003003013
5141000203410043
65054245541355
7545215363043
oct123534030307
931881618838
1011231310023
1148438664aa
12221541485b
13109cb24c9b
147878c3023
1545b030868
hex29d7030c7

11231310023 has 4 divisors (see below), whose sum is σ = 11235043128. Its totient is φ = 11227576920.

The previous prime is 11231310011. The next prime is 11231310047. The reversal of 11231310023 is 32001313211.

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 11231310023 - 210 = 11231308999 is a prime.

It is a super-2 number, since 2×112313100232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11231309983 and 11231310010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231310053) 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, 1862036 + ... + 1868057.

It is an arithmetic number, because the mean of its divisors is an integer number (2808760782).

Almost surely, 211231310023 is an apocalyptic number.

11231310023 is a deficient number, since it is larger than the sum of its proper divisors (3733105).

11231310023 is an equidigital number, since it uses as much as digits as its factorization.

11231310023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733104.

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

Adding to 11231310023 its reverse (32001313211), we get a palindrome (43232623234).

The spelling of 11231310023 in words is "eleven billion, two hundred thirty-one million, three hundred ten thousand, twenty-three".

Divisors: 1 3011 3730093 11231310023