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12023131011 = 319210932123
BaseRepresentation
bin10110011001010001…
…00110101110000011
31011000220122100010120
423030220212232003
5144110410143021
65305013231323
7603641633043
oct131450465603
934026570116
1012023131011
11510a820311
1223b6632543
131197ba3108
14820b1d723
154a57de2c6
hex2cca26b83

12023131011 has 8 divisors (see below), whose sum is σ = 16874569920. Its totient is φ = 7593556392.

The previous prime is 12023131009. The next prime is 12023131013. The reversal of 12023131011 is 11013132021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12023131009) and next prime (12023131013).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12023131011 - 21 = 12023131009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12023131013) 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, 105466005 + ... + 105466118.

It is an arithmetic number, because the mean of its divisors is an integer number (2109321240).

Almost surely, 212023131011 is an apocalyptic number.

12023131011 is a deficient number, since it is larger than the sum of its proper divisors (4851438909).

12023131011 is a wasteful number, since it uses less digits than its factorization.

12023131011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210932145.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12023131011 its reverse (11013132021), we get a palindrome (23036263032).

The spelling of 12023131011 in words is "twelve billion, twenty-three million, one hundred thirty-one thousand, eleven".

Divisors: 1 3 19 57 210932123 632796369 4007710337 12023131011