1200110001011 has 2 divisors, whose sum is σ = 1200110001012. Its totient is φ = 1200110001010.

The previous prime is 1200110000951. The next prime is 1200110001047. The reversal of 1200110001011 is 1101000110021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200110001011 - 2²² = 1200105806707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200110001011.

It is not a weakly prime, because it can be changed into another prime (1200110001061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600055000505 + 600055000506.

It is an arithmetic number, because the mean of its divisors is an integer number (600055000506).

Almost surely, 2^{1200110001011} is an apocalyptic number.

1200110001011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200110001011 is an equidigital number, since it uses as much as digits as its factorization.

1200110001011 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1200110001011 its reverse (1101000110021), we get a palindrome (2301110111032).

The spelling of 1200110001011 in words is "one trillion, two hundred billion, one hundred ten million, one thousand, eleven".