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131340030013 = 769170793277
BaseRepresentation
bin111101001010001111…
…0011101000000111101
3110120000022102211020001
41322110132131000331
54122441021430023
6140200424354301
712326504556253
oct1722436350075
9416008384201
10131340030013
1150779028555
1221555615991
13c5016b6bba
1464dd44a5d3
15363a80e6ad
hex1e9479d03d

131340030013 has 4 divisors (see below), whose sum is σ = 131510824060. Its totient is φ = 131169235968.

The previous prime is 131340030011. The next prime is 131340030061. The reversal of 131340030013 is 310030043131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310030043131 = 2186571417883.

It can be written as a sum of positive squares in 2 ways, for example, as 22140844804 + 109199185209 = 148798^2 + 330453^2 .

It is a cyclic number.

It is not a de Polignac number, because 131340030013 - 21 = 131340030011 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 (131340030011) 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, 85395870 + ... + 85397407.

It is an arithmetic number, because the mean of its divisors is an integer number (32877706015).

Almost surely, 2131340030013 is an apocalyptic number.

It is an amenable number.

131340030013 is a deficient number, since it is larger than the sum of its proper divisors (170794047).

131340030013 is an equidigital number, since it uses as much as digits as its factorization.

131340030013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170794046.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131340030013 its reverse (310030043131), we get a palindrome (441370073144).

The spelling of 131340030013 in words is "one hundred thirty-one billion, three hundred forty million, thirty thousand, thirteen".

Divisors: 1 769 170793277 131340030013