32520313381 has 2 divisors, whose sum is σ = 32520313382. Its totient is φ = 32520313380.

The previous prime is 32520313373. The next prime is 32520313429. The reversal of 32520313381 is 18331302523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32481050625 + 39262756 = 180225^2 + 6266^2 .

It is a cyclic number.

It is not a de Polignac number, because 32520313381 - 2³ = 32520313373 is a prime.

It is a super-2 number, since 2×32520313381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32520313321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16260156690 + 16260156691.

It is an arithmetic number, because the mean of its divisors is an integer number (16260156691).

Almost surely, 2^32520313381 is an apocalyptic number.

It is an amenable number.

32520313381 is a deficient number, since it is larger than the sum of its proper divisors (1).

32520313381 is an equidigital number, since it uses as much as digits as its factorization.

32520313381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 32520313381 in words is "thirty-two billion, five hundred twenty million, three hundred thirteen thousand, three hundred eighty-one".