1200010111111 has 8 divisors (see below), whose sum is σ = 1431067958784. Its totient is φ = 983859221400.

The previous prime is 1200010111061. The next prime is 1200010111117. The reversal of 1200010111111 is 1111110100021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200010111111 - 2¹⁵ = 1200010078343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200010111117) 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 7 ways as a sum of consecutive naturals, for example, 3726739315 + ... + 3726739636.

It is an arithmetic number, because the mean of its divisors is an integer number (178883494848).

Almost surely, 2^{1200010111111} is an apocalyptic number.

1200010111111 is a deficient number, since it is larger than the sum of its proper divisors (231057847673).

1200010111111 is an equidigital number, since it uses as much as digits as its factorization.

1200010111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7453478981.

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

Adding to 1200010111111 its reverse (1111110100021), we get a palindrome (2311120211132).

The spelling of 1200010111111 in words is "one trillion, two hundred billion, ten million, one hundred eleven thousand, one hundred eleven".