131440673073 has 4 divisors (see below), whose sum is σ = 175254230768. Its totient is φ = 87627115380.

The previous prime is 131440673071. The next prime is 131440673093. The reversal of 131440673073 is 370376044131.

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 not a de Polignac number, because 131440673073 - 2¹ = 131440673071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131440673071) 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, 21906778843 + ... + 21906778848.

It is an arithmetic number, because the mean of its divisors is an integer number (43813557692).

Almost surely, 2^131440673073 is an apocalyptic number.

It is an amenable number.

131440673073 is a deficient number, since it is larger than the sum of its proper divisors (43813557695).

131440673073 is an equidigital number, since it uses as much as digits as its factorization.

131440673073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43813557694.

The product of its (nonzero) digits is 127008, while the sum is 39.

The spelling of 131440673073 in words is "one hundred thirty-one billion, four hundred forty million, six hundred seventy-three thousand, seventy-three".