120203241091 has 2 divisors, whose sum is σ = 120203241092. Its totient is φ = 120203241090.

The previous prime is 120203241089. The next prime is 120203241127. The reversal of 120203241091 is 190142302021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120203241091 - 2¹ = 120203241089 is a prime.

Together with 120203241089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120203241001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60101620545 + 60101620546.

It is an arithmetic number, because the mean of its divisors is an integer number (60101620546).

Almost surely, 2^120203241091 is an apocalyptic number.

120203241091 is a deficient number, since it is larger than the sum of its proper divisors (1).

120203241091 is an equidigital number, since it uses as much as digits as its factorization.

120203241091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 120203241091 in words is "one hundred twenty billion, two hundred three million, two hundred forty-one thousand, ninety-one".