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12144313111031 = 53418793547139
BaseRepresentation
bin1011000010111001000101…
…1110000001000111110111
31120222222121001122201120122
42300232101132001013313
53042433023124023111
641455004224522155
72362253254142363
oct260562136010767
946888531581518
1012144313111031
113962413171112
121441795a8035b
136a1285a1198a
142ddb05d882a3
15160d7c615cdb
hexb0b917811f7

12144313111031 has 8 divisors (see below), whose sum is σ = 12373503254640. Its totient is φ = 11915124899392.

The previous prime is 12144313111003. The next prime is 12144313111043. The reversal of 12144313111031 is 13011131344121.

It is a happy number.

12144313111031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12144313111031 - 230 = 12143239369207 is a prime.

It is a super-2 number, since 2×121443131110312 (a number of 27 digits) contains 22 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 (12144313111001) 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, 21922460 + ... + 22469598.

It is an arithmetic number, because the mean of its divisors is an integer number (1546687906830).

Almost surely, 212144313111031 is an apocalyptic number.

12144313111031 is a deficient number, since it is larger than the sum of its proper divisors (229190143609).

12144313111031 is an equidigital number, since it uses as much as digits as its factorization.

12144313111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965985.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 12144313111031 its reverse (13011131344121), we get a palindrome (25155444455152).

The spelling of 12144313111031 in words is "twelve trillion, one hundred forty-four billion, three hundred thirteen million, one hundred eleven thousand, thirty-one".

Divisors: 1 53 418793 547139 22196029 28998367 229137983227 12144313111031