111031020212011 has 4 divisors (see below), whose sum is σ = 111031063185024. Its totient is φ = 111030977239000.

The previous prime is 111031020211999. The next prime is 111031020212113. The reversal of 111031020212011 is 110212020130111.

It is a happy number.

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 111031020212011 - 2⁷ = 111031020211883 is a prime.

It is a super-3 number, since 3×111031020212011³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111031020213011) 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, 17344780 + ... + 22867081.

It is an arithmetic number, because the mean of its divisors is an integer number (27757765796256).

Almost surely, 2^{111031020212011} is an apocalyptic number.

111031020212011 is a deficient number, since it is larger than the sum of its proper divisors (42973013).

111031020212011 is an equidigital number, since it uses as much as digits as its factorization.

111031020212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42973012.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111031020212011 its reverse (110212020130111), we get a palindrome (221243040342122).

The spelling of 111031020212011 in words is "one hundred eleven trillion, thirty-one billion, twenty million, two hundred twelve thousand, eleven".