1200010101011 has 16 divisors (see below), whose sum is σ = 1276082121600. Its totient is φ = 1125247915008.

The previous prime is 1200010100969. The next prime is 1200010101061. The reversal of 1200010101011 is 1101010100021.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200010101011 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 1200010101011.

It is not an unprimeable number, because it can be changed into a prime (1200010101061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2088080 + ... + 2600018.

It is an arithmetic number, because the mean of its divisors is an integer number (79755132600).

Almost surely, 2^{1200010101011} is an apocalyptic number.

1200010101011 is a deficient number, since it is larger than the sum of its proper divisors (76072020589).

1200010101011 is a wasteful number, since it uses less digits than its factorization.

1200010101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513218.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1200010101011 its reverse (1101010100021), we get a palindrome (2301020201032).

The spelling of 1200010101011 in words is "one trillion, two hundred billion, ten million, one hundred one thousand, eleven".