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13125405231001 = 712682314784841
BaseRepresentation
bin1011111011111111111100…
…0111011100011110011001
31201110202222001120022202201
42332333333013130132121
53210021312214343001
643525421121530201
72523164530440640
oct276777707343631
951422861508681
1013125405231001
1142004a908a978
12157b95b7a3961
1374294995490b
143353b7196357
1517b64de3c501
hexbefff1dc799

13125405231001 has 8 divisors (see below), whose sum is σ = 15000582414464. Its totient is φ = 11250257870880.

The previous prime is 13125405230983. The next prime is 13125405231007. The reversal of 13125405231001 is 10013250452131.

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

It is not a de Polignac number, because 13125405231001 - 25 = 13125405230969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13125405231007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6504660 + ... + 8280181.

It is an arithmetic number, because the mean of its divisors is an integer number (1875072801808).

Almost surely, 213125405231001 is an apocalyptic number.

It is an amenable number.

13125405231001 is a deficient number, since it is larger than the sum of its proper divisors (1875177183463).

13125405231001 is a wasteful number, since it uses less digits than its factorization.

13125405231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14911671.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 13125405231001 its reverse (10013250452131), we get a palindrome (23138655683132).

The spelling of 13125405231001 in words is "thirteen trillion, one hundred twenty-five billion, four hundred five million, two hundred thirty-one thousand, one".

Divisors: 1 7 126823 887761 14784841 103493887 1875057890143 13125405231001