1201102020011 has 4 divisors (see below), whose sum is σ = 1253323846992. Its totient is φ = 1148880193032.

The previous prime is 1201102019917. The next prime is 1201102020059. The reversal of 1201102020011 is 1100202011021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1201102020011 - 2²⁶ = 1201034911147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201102019974 and 1201102020001.

It is not an unprimeable number, because it can be changed into a prime (1201102020211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26110913456 + ... + 26110913501.

It is an arithmetic number, because the mean of its divisors is an integer number (313330961748).

Almost surely, 2^{1201102020011} is an apocalyptic number.

1201102020011 is a deficient number, since it is larger than the sum of its proper divisors (52221826981).

1201102020011 is an equidigital number, since it uses as much as digits as its factorization.

1201102020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52221826980.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1201102020011 its reverse (1100202011021), we get a palindrome (2301304031032).

The spelling of 1201102020011 in words is "one trillion, two hundred one billion, one hundred two million, twenty thousand, eleven".