32150320421 has 2 divisors, whose sum is σ = 32150320422. Its totient is φ = 32150320420.

The previous prime is 32150320409. The next prime is 32150320469. The reversal of 32150320421 is 12402305123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28488376225 + 3661944196 = 168785^2 + 60514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32150320421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32150320921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16075160210 + 16075160211.

It is an arithmetic number, because the mean of its divisors is an integer number (16075160211).

Almost surely, 2^32150320421 is an apocalyptic number.

It is an amenable number.

32150320421 is a deficient number, since it is larger than the sum of its proper divisors (1).

32150320421 is an equidigital number, since it uses as much as digits as its factorization.

32150320421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 32150320421 its reverse (12402305123), we get a palindrome (44552625544).

The spelling of 32150320421 in words is "thirty-two billion, one hundred fifty million, three hundred twenty thousand, four hundred twenty-one".