32121211393 has 2 divisors, whose sum is σ = 32121211394. Its totient is φ = 32121211392.

The previous prime is 32121211327. The next prime is 32121211433. The reversal of 32121211393 is 39311212123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27829913329 + 4291298064 = 166823^2 + 65508^2 .

It is an emirp because it is prime and its reverse (39311212123) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32121211393 is a prime.

It is not a weakly prime, because it can be changed into another prime (32121211303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060605696 + 16060605697.

It is an arithmetic number, because the mean of its divisors is an integer number (16060605697).

Almost surely, 2^32121211393 is an apocalyptic number.

It is an amenable number.

32121211393 is a deficient number, since it is larger than the sum of its proper divisors (1).

32121211393 is an equidigital number, since it uses as much as digits as its factorization.

32121211393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 28.

The spelling of 32121211393 in words is "thirty-two billion, one hundred twenty-one million, two hundred eleven thousand, three hundred ninety-three".