32505311213 has 4 divisors (see below), whose sum is σ = 32509924380. Its totient is φ = 32500698048.

The previous prime is 32505311203. The next prime is 32505311239. The reversal of 32505311213 is 31211350523.

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 25758003049 + 6747308164 = 160493^2 + 82142^2 .

It is a cyclic number.

It is not a de Polignac number, because 32505311213 - 2⁶ = 32505311149 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 (32505311203) 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, 2295998 + ... + 2310111.

It is an arithmetic number, because the mean of its divisors is an integer number (8127481095).

Almost surely, 2^32505311213 is an apocalyptic number.

It is an amenable number.

32505311213 is a deficient number, since it is larger than the sum of its proper divisors (4613167).

32505311213 is an equidigital number, since it uses as much as digits as its factorization.

32505311213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613166.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 32505311213 its reverse (31211350523), we get a palindrome (63716661736).

The spelling of 32505311213 in words is "thirty-two billion, five hundred five million, three hundred eleven thousand, two hundred thirteen".