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12315261012423 = 35994296848329
BaseRepresentation
bin1011001100110101111011…
…0000100000100111000111
31121121022211201021212221220
42303031132300200213013
53103233123304344143
642105315223411423
72410514435263425
oct263153660404707
947538751255856
1012315261012423
113a18966868666
12146a943bb3b73
136b442a164555
143080c188a115
151655352a0d83
hexb335ec209c7

12315261012423 has 8 divisors (see below), whose sum is σ = 16420377807600. Its totient is φ = 8210159112768.

The previous prime is 12315261012361. The next prime is 12315261012433. The reversal of 12315261012423 is 32421016251321.

12315261012423 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 not a de Polignac number, because 12315261012423 - 28 = 12315261012167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315261012433) 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, 1625878 + ... + 5222451.

It is an arithmetic number, because the mean of its divisors is an integer number (2052547225950).

Almost surely, 212315261012423 is an apocalyptic number.

12315261012423 is a deficient number, since it is larger than the sum of its proper divisors (4105116795177).

12315261012423 is an equidigital number, since it uses as much as digits as its factorization.

12315261012423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7447761.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 12315261012423 its reverse (32421016251321), we get a palindrome (44736277263744).

The spelling of 12315261012423 in words is "twelve trillion, three hundred fifteen billion, two hundred sixty-one million, twelve thousand, four hundred twenty-three".

Divisors: 1 3 599429 1798287 6848329 20544987 4105087004141 12315261012423