2120424535091 has 2 divisors, whose sum is σ = 2120424535092. Its totient is φ = 2120424535090.

The previous prime is 2120424535079. The next prime is 2120424535129. The reversal of 2120424535091 is 1905354240212.

It is an a-pointer prime, because the next prime (2120424535129) can be obtained adding 2120424535091 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120424535091 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120424535591) 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, 1060212267545 + 1060212267546.

It is an arithmetic number, because the mean of its divisors is an integer number (1060212267546).

Almost surely, 2^{2120424535091} is an apocalyptic number.

2120424535091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120424535091 is an equidigital number, since it uses as much as digits as its factorization.

2120424535091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 2120424535091 in words is "two trillion, one hundred twenty billion, four hundred twenty-four million, five hundred thirty-five thousand, ninety-one".