111012021011011 has 4 divisors (see below), whose sum is σ = 111015059060224. Its totient is φ = 111008982961800.

The previous prime is 111012021010999. The next prime is 111012021011039. The reversal of 111012021011011 is 110110120210111.

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 111012021011011 - 2¹⁹ = 111012020486723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111012021010982 and 111012021011000.

It is not an unprimeable number, because it can be changed into a prime (111012021071011) 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, 1518969795 + ... + 1519042876.

It is an arithmetic number, because the mean of its divisors is an integer number (27753764765056).

Almost surely, 2^{111012021011011} is an apocalyptic number.

111012021011011 is a deficient number, since it is larger than the sum of its proper divisors (3038049213).

111012021011011 is an equidigital number, since it uses as much as digits as its factorization.

111012021011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038049212.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111012021011011 its reverse (110110120210111), we get a palindrome (221122141221122).

The spelling of 111012021011011 in words is "one hundred eleven trillion, twelve billion, twenty-one million, eleven thousand, eleven".