1032120091 has 2 divisors, whose sum is σ = 1032120092. Its totient is φ = 1032120090.

The previous prime is 1032120077. The next prime is 1032120097. The reversal of 1032120091 is 1900212301.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1032120091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1032120097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516060045 + 516060046.

It is an arithmetic number, because the mean of its divisors is an integer number (516060046).

Almost surely, 2^1032120091 is an apocalyptic number.

1032120091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1032120091 is an equidigital number, since it uses as much as digits as its factorization.

1032120091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1032120091 is about 32126.6258888169. The cubic root of 1032120091 is about 1010.5940664177.

Adding to 1032120091 its reverse (1900212301), we get a palindrome (2932332392).

The spelling of 1032120091 in words is "one billion, thirty-two million, one hundred twenty thousand, ninety-one".