2130440131609 has 4 divisors (see below), whose sum is σ = 2134529268660. Its totient is φ = 2126350994560.

The previous prime is 2130440131591. The next prime is 2130440131643. The reversal of 2130440131609 is 9061310440312.

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 1193905875600 + 936534256009 = 1092660^2 + 967747^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130440131609 - 2¹¹ = 2130440129561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130440131109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2044567744 + ... + 2044568785.

It is an arithmetic number, because the mean of its divisors is an integer number (533632317165).

Almost surely, 2^{2130440131609} is an apocalyptic number.

It is an amenable number.

2130440131609 is a deficient number, since it is larger than the sum of its proper divisors (4089137051).

2130440131609 is an equidigital number, since it uses as much as digits as its factorization.

2130440131609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089137050.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 2130440131609 in words is "two trillion, one hundred thirty billion, four hundred forty million, one hundred thirty-one thousand, six hundred nine".