120001002091 has 2 divisors, whose sum is σ = 120001002092. Its totient is φ = 120001002090.

The previous prime is 120001002059. The next prime is 120001002113. The reversal of 120001002091 is 190200100021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120001002091 - 2⁵ = 120001002059 is a prime.

It is not a weakly prime, because it can be changed into another prime (120001002031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60000501045 + 60000501046.

It is an arithmetic number, because the mean of its divisors is an integer number (60000501046).

Almost surely, 2^120001002091 is an apocalyptic number.

120001002091 is a deficient number, since it is larger than the sum of its proper divisors (1).

120001002091 is an equidigital number, since it uses as much as digits as its factorization.

120001002091 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 16.

The spelling of 120001002091 in words is "one hundred twenty billion, one million, two thousand, ninety-one".