3201420091 has 2 divisors, whose sum is σ = 3201420092. Its totient is φ = 3201420090.

The previous prime is 3201420049. The next prime is 3201420137. The reversal of 3201420091 is 1900241023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3201420091 - 2¹⁵ = 3201387323 is a prime.

It is not a weakly prime, because it can be changed into another prime (3201420031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600710045 + 1600710046.

It is an arithmetic number, because the mean of its divisors is an integer number (1600710046).

Almost surely, 2^3201420091 is an apocalyptic number.

3201420091 is a deficient number, since it is larger than the sum of its proper divisors (1).

3201420091 is an equidigital number, since it uses as much as digits as its factorization.

3201420091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 3201420091 is about 56581.0930523616. The cubic root of 3201420091 is about 1473.8305530506.

The spelling of 3201420091 in words is "three billion, two hundred one million, four hundred twenty thousand, ninety-one".