3200020091 has 2 divisors, whose sum is σ = 3200020092. Its totient is φ = 3200020090.

The previous prime is 3200020079. The next prime is 3200020127. The reversal of 3200020091 is 1900200023.

It is a weak prime.

It is an emirp because it is prime and its reverse (1900200023) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3200020091 is a prime.

It is not a weakly prime, because it can be changed into another prime (3200020391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600010045 + 1600010046.

It is an arithmetic number, because the mean of its divisors is an integer number (1600010046).

Almost surely, 2^3200020091 is an apocalyptic number.

3200020091 is a deficient number, since it is larger than the sum of its proper divisors (1).

3200020091 is an equidigital number, since it uses as much as digits as its factorization.

3200020091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3200020091 is about 56568.7200756743. The cubic root of 3200020091 is about 1473.6156834446.

The spelling of 3200020091 in words is "three billion, two hundred million, twenty thousand, ninety-one".