32121065257 has 2 divisors, whose sum is σ = 32121065258. Its totient is φ = 32121065256.

The previous prime is 32121065243. The next prime is 32121065261. The reversal of 32121065257 is 75256012123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31550285376 + 570779881 = 177624^2 + 23891^2 .

It is an emirp because it is prime and its reverse (75256012123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32121065257 - 2⁷ = 32121065129 is a prime.

It is not a weakly prime, because it can be changed into another prime (32121065957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060532628 + 16060532629.

It is an arithmetic number, because the mean of its divisors is an integer number (16060532629).

Almost surely, 2^32121065257 is an apocalyptic number.

It is an amenable number.

32121065257 is a deficient number, since it is larger than the sum of its proper divisors (1).

32121065257 is an equidigital number, since it uses as much as digits as its factorization.

32121065257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 32121065257 in words is "thirty-two billion, one hundred twenty-one million, sixty-five thousand, two hundred fifty-seven".