11020120201091 has 24 divisors (see below), whose sum is σ = 11739859395936. Its totient is φ = 10324853510400.

The previous prime is 11020120201067. The next prime is 11020120201127. The reversal of 11020120201091 is 19010202102011.

It is not a de Polignac number, because 11020120201091 - 2²² = 11020116006787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020120201021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38686901 + ... + 38970713.

It is an arithmetic number, because the mean of its divisors is an integer number (489160808164).

Almost surely, 2^{11020120201091} is an apocalyptic number.

11020120201091 is a deficient number, since it is larger than the sum of its proper divisors (719739194845).

11020120201091 is an equidigital number, since it uses as much as digits as its factorization.

11020120201091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284543 (or 284490 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 11020120201091 in words is "eleven trillion, twenty billion, one hundred twenty million, two hundred one thousand, ninety-one".