210102011011091 has 2 divisors, whose sum is σ = 210102011011092. Its totient is φ = 210102011011090.

The previous prime is 210102011011031. The next prime is 210102011011121. The reversal of 210102011011091 is 190110110201012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210102011011091 is a prime.

It is not a weakly prime, because it can be changed into another prime (210102011011031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051005505545 + 105051005505546.

It is an arithmetic number, because the mean of its divisors is an integer number (105051005505546).

Almost surely, 2^{210102011011091} is an apocalyptic number.

210102011011091 is a deficient number, since it is larger than the sum of its proper divisors (1).

210102011011091 is an equidigital number, since it uses as much as digits as its factorization.

210102011011091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 210102011011091 in words is "two hundred ten trillion, one hundred two billion, eleven million, eleven thousand, ninety-one".