32131050505 has 4 divisors (see below), whose sum is σ = 38557260612. Its totient is φ = 25704840400.

The previous prime is 32131050491. The next prime is 32131050509. The reversal of 32131050505 is 50505013123.

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 8574019216 + 23557031289 = 92596^2 + 153483^2 .

It is not a de Polignac number, because 32131050505 - 2¹⁹ = 32130526217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32131050505.

It is not an unprimeable number, because it can be changed into a prime (32131050509) 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, 3213105046 + ... + 3213105055.

It is an arithmetic number, because the mean of its divisors is an integer number (9639315153).

Almost surely, 2^32131050505 is an apocalyptic number.

It is an amenable number.

32131050505 is a deficient number, since it is larger than the sum of its proper divisors (6426210107).

32131050505 is an equidigital number, since it uses as much as digits as its factorization.

32131050505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6426210106.

The product of its (nonzero) digits is 2250, while the sum is 25.

Adding to 32131050505 its reverse (50505013123), we get a palindrome (82636063628).

The spelling of 32131050505 in words is "thirty-two billion, one hundred thirty-one million, fifty thousand, five hundred five".