1200111110011 has 8 divisors (see below), whose sum is σ = 1312920940464. Its totient is φ = 1087919416320.

The previous prime is 1200111109993. The next prime is 1200111110021. The reversal of 1200111110011 is 1100111110021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1200111110011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1200111110011.

It is not an unprimeable number, because it can be changed into a prime (1200111110021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154530126 + ... + 154537891.

It is an arithmetic number, because the mean of its divisors is an integer number (164115117558).

Almost surely, 2^{1200111110011} is an apocalyptic number.

1200111110011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200111110011 is a deficient number, since it is larger than the sum of its proper divisors (112809830453).

1200111110011 is a wasteful number, since it uses less digits than its factorization.

1200111110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309068381.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1200111110011 its sum of digits (10), we get a palindrome (1200111110021).

Adding to 1200111110011 its reverse (1100111110021), we get a palindrome (2300222220032).

The spelling of 1200111110011 in words is "one trillion, two hundred billion, one hundred eleven million, one hundred ten thousand, eleven".