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331230131301013 = 747318590185859
BaseRepresentation
bin100101101010000001000011…
…0010100001010101010010101
31121102210021212100201010211021
41023110002012110022222111
5321403333302103113023
63132245004402241141
7126524405301541060
oct11324020624125225
91542707770633737
10331230131301013
11965a3a00a7102a
12311967509561b1
13112a8b37776859
145bb18a3d738d7
1528460c873635d
hex12d408650aa95

331230131301013 has 4 divisors (see below), whose sum is σ = 378548721486880. Its totient is φ = 283911541115148.

The previous prime is 331230131300989. The next prime is 331230131301019. The reversal of 331230131301013 is 310103131032133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 331230131301013 - 221 = 331230129203861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331230131301019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23659295092923 + ... + 23659295092936.

It is an arithmetic number, because the mean of its divisors is an integer number (94637180371720).

Almost surely, 2331230131301013 is an apocalyptic number.

It is an amenable number.

331230131301013 is a deficient number, since it is larger than the sum of its proper divisors (47318590185867).

331230131301013 is an equidigital number, since it uses as much as digits as its factorization.

331230131301013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47318590185866.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 331230131301013 its reverse (310103131032133), we get a palindrome (641333262333146).

The spelling of 331230131301013 in words is "three hundred thirty-one trillion, two hundred thirty billion, one hundred thirty-one million, three hundred one thousand, thirteen".

Divisors: 1 7 47318590185859 331230131301013