1200011011027 has 2 divisors, whose sum is σ = 1200011011028. Its totient is φ = 1200011011026.

The previous prime is 1200011010977. The next prime is 1200011011081. The reversal of 1200011011027 is 7201101100021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200011011027 - 2³¹ = 1197863527379 is a prime.

It is a super-3 number, since 3×1200011011027³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1200011011027.

It is not a weakly prime, because it can be changed into another prime (1200011011097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600005505513 + 600005505514.

It is an arithmetic number, because the mean of its divisors is an integer number (600005505514).

Almost surely, 2^{1200011011027} is an apocalyptic number.

1200011011027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200011011027 is an equidigital number, since it uses as much as digits as its factorization.

1200011011027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 16.

Adding to 1200011011027 its reverse (7201101100021), we get a palindrome (8401112111048).

The spelling of 1200011011027 in words is "one trillion, two hundred billion, eleven million, eleven thousand, twenty-seven".