2120351202191 has 2 divisors, whose sum is σ = 2120351202192. Its totient is φ = 2120351202190.

The previous prime is 2120351202163. The next prime is 2120351202251. The reversal of 2120351202191 is 1912021530212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120351202191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120351202131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060175601095 + 1060175601096.

It is an arithmetic number, because the mean of its divisors is an integer number (1060175601096).

Almost surely, 2^{2120351202191} is an apocalyptic number.

2120351202191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120351202191 is an equidigital number, since it uses as much as digits as its factorization.

2120351202191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 2120351202191 in words is "two trillion, one hundred twenty billion, three hundred fifty-one million, two hundred two thousand, one hundred ninety-one".