111020201011 has 4 divisors (see below), whose sum is σ = 112119411024. Its totient is φ = 109920991000.

The previous prime is 111020201009. The next prime is 111020201051. The reversal of 111020201011 is 110102020111.

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 111020201011 - 2¹ = 111020201009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111020201051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549604855 + ... + 549605056.

It is an arithmetic number, because the mean of its divisors is an integer number (28029852756).

Almost surely, 2^111020201011 is an apocalyptic number.

111020201011 is a deficient number, since it is larger than the sum of its proper divisors (1099210013).

111020201011 is a wasteful number, since it uses less digits than its factorization.

111020201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099210012.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111020201011 its reverse (110102020111), we get a palindrome (221122221122).

The spelling of 111020201011 in words is "one hundred eleven billion, twenty million, two hundred one thousand, eleven".