11020120020001 has 8 divisors (see below), whose sum is σ = 11078271939240. Its totient is φ = 10961990446848.

The previous prime is 11020120019971. The next prime is 11020120020047. The reversal of 11020120020001 is 10002002102011.

It can be written as a sum of positive squares in 4 ways, for example, as 2336495673600 + 8683624346401 = 1528560^2 + 2946799^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11020120020001 - 2⁵ = 11020120019969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11020120020001.

It is not an unprimeable number, because it can be changed into a prime (11020120026001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4597146 + ... + 6570691.

It is an arithmetic number, because the mean of its divisors is an integer number (1384783992405).

Almost surely, 2^{11020120020001} is an apocalyptic number.

It is an amenable number.

11020120020001 is a deficient number, since it is larger than the sum of its proper divisors (58151919239).

11020120020001 is a wasteful number, since it uses less digits than its factorization.

11020120020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11173043.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11020120020001 its reverse (10002002102011), we get a palindrome (21022122122012).

The spelling of 11020120020001 in words is "eleven trillion, twenty billion, one hundred twenty million, twenty thousand, one".