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12310031311103 = 64331513607517
BaseRepresentation
bin1011001100100010011100…
…0010110010000011111111
31121120211100020200112102102
42303020213002302003333
53103141421003423403
642103052245015315
72410241023456001
oct263104702620377
947524306615372
1012310031311103
113a16722831659
1214699246b453b
136b3aa584c626
14307b470b4371
1516532b0c4b88
hexb32270b20ff

12310031311103 has 8 divisors (see below), whose sum is σ = 12329587530288. Its totient is φ = 12290476371264.

The previous prime is 12310031311091. The next prime is 12310031311199. The reversal of 12310031311103 is 30111313001321.

12310031311103 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 12310031311103 - 28 = 12310031310847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310031311003) 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, 19959101 + ... + 20566617.

It is an arithmetic number, because the mean of its divisors is an integer number (1541198441286).

Almost surely, 212310031311103 is an apocalyptic number.

12310031311103 is a deficient number, since it is larger than the sum of its proper divisors (19556219185).

12310031311103 is an equidigital number, since it uses as much as digits as its factorization.

12310031311103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639673.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 12310031311103 its reverse (30111313001321), we get a palindrome (42421344312424).

The spelling of 12310031311103 in words is "twelve trillion, three hundred ten billion, thirty-one million, three hundred eleven thousand, one hundred three".

Divisors: 1 643 31513 607517 20262859 390633431 19144683221 12310031311103