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131310210001 = 281467296121
BaseRepresentation
bin111101001001010110…
…0101100101111010001
3110112221020022210212011
41322102230230233101
54122410403210001
6140153441302521
712325663240405
oct1722254545721
9415836283764
10131310210001
1150763210313
1221547634a41
13c4c8475b19
1464d94c7105
153637dbdd51
hex1e92b2cbd1

131310210001 has 4 divisors (see below), whose sum is σ = 131777506404. Its totient is φ = 130842913600.

The previous prime is 131310209999. The next prime is 131310210007. The reversal of 131310210001 is 100012013131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36557057601 + 94753152400 = 191199^2 + 307820^2 .

It is a cyclic number.

It is not a de Polignac number, because 131310210001 - 21 = 131310209999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131310210007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233647780 + ... + 233648341.

It is an arithmetic number, because the mean of its divisors is an integer number (32944376601).

Almost surely, 2131310210001 is an apocalyptic number.

It is an amenable number.

131310210001 is a deficient number, since it is larger than the sum of its proper divisors (467296403).

131310210001 is an equidigital number, since it uses as much as digits as its factorization.

131310210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467296402.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 131310210001 its reverse (100012013131), we get a palindrome (231322223132).

The spelling of 131310210001 in words is "one hundred thirty-one billion, three hundred ten million, two hundred ten thousand, one".

Divisors: 1 281 467296121 131310210001