1011200112011 has 4 divisors (see below), whose sum is σ = 1011354194472. Its totient is φ = 1011046029552.

The previous prime is 1011200111969. The next prime is 1011200112019. The reversal of 1011200112011 is 1102110021101.

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 1011200112011 - 2²² = 1011195917707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011200111983 and 1011200112001.

It is not an unprimeable number, because it can be changed into a prime (1011200112019) 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, 77031386 + ... + 77044511.

It is an arithmetic number, because the mean of its divisors is an integer number (252838548618).

Almost surely, 2^{1011200112011} is an apocalyptic number.

1011200112011 is a deficient number, since it is larger than the sum of its proper divisors (154082461).

1011200112011 is an equidigital number, since it uses as much as digits as its factorization.

1011200112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154082460.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011200112011 its reverse (1102110021101), we get a palindrome (2113310133112).

It can be divided in two parts, 1011200 and 112011, that added together give a palindrome (1123211).

The spelling of 1011200112011 in words is "one trillion, eleven billion, two hundred million, one hundred twelve thousand, eleven".