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12311200123203 = 39742509995237
BaseRepresentation
bin1011001100100110110010…
…1101011100100101000011
31121120221100201000100012110
42303021230231130211003
53103201314212420303
642103404240430403
72410312005300312
oct263115455344503
947527321010173
1012311200123203
113a17172576473
121469bb0018403
136b3c30a44217
14307c18406279
151653989ee703
hexb326cb5c943

12311200123203 has 16 divisors (see below), whose sum is σ = 16584566412960. Its totient is φ = 8122654442496.

The previous prime is 12311200123193. The next prime is 12311200123247. The reversal of 12311200123203 is 30232100211321.

12311200123203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12311200123203 - 26 = 12311200123139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12311200123203.

It is not an unprimeable number, because it can be changed into a prime (12311200123253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11872501 + ... + 12867737.

It is an arithmetic number, because the mean of its divisors is an integer number (1036535400810).

Almost surely, 212311200123203 is an apocalyptic number.

12311200123203 is a deficient number, since it is larger than the sum of its proper divisors (4273366289757).

12311200123203 is an equidigital number, since it uses as much as digits as its factorization.

12311200123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037846.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12311200123203 its reverse (30232100211321), we get a palindrome (42543300334524).

The spelling of 12311200123203 in words is "twelve trillion, three hundred eleven billion, two hundred million, one hundred twenty-three thousand, two hundred three".

Divisors: 1 3 97 291 42509 127527 995237 2985711 4123373 12370119 96537989 289613967 42306529633 126919588899 4103733374401 12311200123203